CN210649562U - Steam turbine set blade profile machining tool - Google Patents
Steam turbine set blade profile machining tool Download PDFInfo
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- CN210649562U CN210649562U CN201921225767.9U CN201921225767U CN210649562U CN 210649562 U CN210649562 U CN 210649562U CN 201921225767 U CN201921225767 U CN 201921225767U CN 210649562 U CN210649562 U CN 210649562U
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- turbine set
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Abstract
The utility model provides a turbine set blade profile processing frock, including first processingequipment and second processingequipment, its characterized in that: first processingequipment sets up in the left side, second processingequipment sets up on the right side, first processingequipment includes the tailstock, the second processingequipment includes the revolving stage, the utility model discloses the positioning and clamping device simple structure that uses presss from both sides tight work piece and takes out the easy and simple to handle of work piece, need not professional artifical timing to press from both sides the automatic product setting that will treat processing of in-process on same horizontal plane, reduced the error in the course of working, improved the machining precision.
Description
Technical Field
The utility model relates to a processing technology field of steam turbine blade.
In particular to a profile processing tool for a steam turbine set blade.
Background
With the progress of science and technology, the development of the steam turbine has great progress, and particularly, a great technical breakthrough is made in the production and research of large-scale steam turbines, and the profile processing technology of the steam turbine blades plays a decisive role in the service life of the steam turbine and the conversion efficiency of kinetic energy.
In the patent names: a special tool for machining the profile of a movable blade of a large-sized steam turbine set is disclosed in the patent with the application number of CN201120280942.1, and the technical scheme for machining the profile of the movable blade of the large-sized steam turbine set is disclosed in the patent, wherein the movable blade of the steam turbine set with 100 ten-thousand kilowatts is disclosed in the patent, the length of the blade is long, the precision requirement is high, and only a vertical numerical control machine tool can be adopted for machining and a workpiece can be horizontally arranged. When a workpiece to be processed is arranged on a vertical numerical control machine tool, a single-side clamping mode is adopted, namely one end of each blade is connected to the end face of the rotary table in an installing mode through a clamping jaw, and the other end of each blade is fixed in a jacking mode through an ejector pin, so that the position of each blade in the height direction is relatively fixed. When the numerical control machine tool works, the rotary table continuously rotates and drives the blades to rotate in a vertical plane along the rotating center of the rotary table, and the vertical milling cutter feeds in the height direction and processes different positions on the blades so as to process the molded surfaces of the blades. However, since the blade base surface positioning tool is used, there are many steps before the blade base surface is positioned. In addition, the thinnest part of the movable blade of the steam turbine set is only 5mm, and the blank is provided with three positioning reference holes. When machining the base surface, cumulative errors occur. With the technical progress and national improvement of quality requirements. Therefore, the applicant provides a set of special tool for integrally machining the reference surface and the rough profile of the moving blade of the large steam turbine set through the three central holes of the original reference of the blank.
The machining of the blade is completed by a numerical control vertical machining center. The center hole of the blade root is arranged on two positioning apexes of the second processing device in the direction of the rotary table, and the center hole of the blade shroud is arranged on the apex of the first processing device. The blade is parallel to the surface of a machine tool workbench and is arranged along the X-axis direction, the blade root end of the blade is clamped and arranged through a blank process head part on the end surface of a machine tool turntable, the clamping part is a self-positioning clamping jaw, and two central holes are positioned. The name of the self-positioning claw can be named as 'right self-positioning claw' by expression in the figure. The right two top self-positioning clamping claws clamp the technological head part of the blade root, when a machine tool rotary table rotates in a vertical plane, the blades are driven to rotate in the same rotating state, and meanwhile, the blade clamping crown part of the first machining device rotates concentrically.
Structurally having at above-mentioned vertical four-axis machining center itself, the utility model discloses add one set of special frock, including two top positioning and clamping device and synchronous driven tailstock device that rotates. The clamping device also adopts clamping or jacking, is named as a left clamping device and corresponds to the mounting position of two right top self-positioning clamping jaws, so that the blades can be arranged parallel to the surface of a machine tool workbench.
SUMMERY OF THE UTILITY MODEL
The utility model aims to press from both sides tightly through the original centre bore location blade root blade shroud technology head of blade, but integrated processing blade base face and molded lines.
The purpose of the utility model is achieved through the following technical measures: steam turbine set blade profile processing frock, including first processingequipment and second processingequipment, its characterized in that: the novel tailstock processing device is characterized in that the first processing device is arranged on the left side, the second processing device is arranged on the right side, the first processing device comprises a tailstock, the second processing device comprises a rotary table, the tailstock and the rotary table are arranged on a workbench, a first sliding base plate is arranged between the workbench and the tailstock, a second sliding base plate is arranged between the workbench and the rotary table, the tailstock is provided with a main shaft, the main shaft can rotate, a telescopic tip is arranged at the center of the main shaft, the main shaft is provided with a first fixing disc, a T-shaped groove is circumferentially arranged on the first fixing disc, a four-jaw chuck is arranged on the first fixing disc, and a conical bearing, a ball bearing and a conical bearing are sequentially arranged inside the tailstock.
As an improvement of the technical scheme: the main shaft is far away from one end of the four-jaw chuck and is provided with an ejecting device, the ejecting device comprises a nut and a threaded ejector rod matched with the nut, a through hole penetrating through the main shaft is formed in the main shaft, the threaded ejector rod is matched with the top, the top can be ejected out of the main shaft by rotating the threaded ejector rod, a round locking nut is fixedly arranged on one side, away from the first fixing disc, of the main shaft and is provided with a bearing positioning sleeve, the bearing positioning sleeve is used for adjusting a gap of a bearing on the main shaft, and a transition sleeve in sliding fit with the top is arranged between the top and the main shaft.
As an improvement of the technical scheme: the rotary table is internally provided with a servo motor, one side of the rotary table is provided with a mounting disc, and the mounting disc is rotatably connected with a second clamping device.
As an improvement of the technical scheme: the second clamping device is provided with a first positioning tip and a second positioning tip, and the second positioning tip is provided with an adjusting nut for locking.
As an improvement of the technical scheme: the mounting disc is provided with two clamping grooves, one clamping groove is internally provided with a first clamping claw in a sliding manner, and the other clamping groove is internally provided with a second clamping claw in a sliding manner.
As an improvement of the technical scheme: the first clamping jaw is connected with the second clamping jaw through a double-end stud, threads which are reversely arranged are arranged at two ends of the double-end stud, one end of the double-end stud is matched with the first clamping jaw in a threaded manner, and the other end of the double-end stud is matched with the second clamping jaw in a threaded manner.
Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model has the advantages that: the utility model discloses a positioning and clamping device simple structure presss from both sides tight work piece and takes out the easy and simple to handle of work piece, need not professional's timing to press from both sides tight in-process and will treat the product setting of processing automatically on same horizontal plane, reduced the error in the course of working, improved the machining precision. And the die forging blade integrated processing is guaranteed.
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Drawings
Fig. 1 is a front view of the turbine unit blade profile machining tool and the workpiece of the present invention.
Figure 2 is a cross-sectional view of the tailstock of the present invention.
Figure 3 is a partial cross-sectional view of a second clamping device of the present invention.
Fig. 4 is a top view of the present invention from fig. 3.
Detailed Description
Example (b): as shown in the attached drawing 1, the machining tool for the blade profile of the steam turbine set comprises a first machining device and a second machining device, wherein the first machining device is arranged on the left side, the second machining device is arranged on the right side, the first machining device comprises a tailstock 1, the second machining device comprises a rotary table 2, the tailstock 1 and the rotary table 2 are arranged on a workbench 4, a first sliding base plate 3-1 is arranged between the workbench 4 and the tailstock 1, a second sliding base plate 3-2 is arranged between the workbench 4 and the rotary table 2, a steam turbine set blade 8 is clamped between the tailstock 1 and the rotary table 2, and the first sliding base plate 3-1 and the second sliding base plate 3-2 are used for lengthening the length of the workbench 4 so as to meet the machining requirements of the steam turbine set blade 8.
As shown in fig. 2, the tailstock 1 is provided with a main shaft 5, the main shaft 5 can rotate, a telescopic tip 6 is arranged at the center of the main shaft 5, the diameter of the ejecting part is 30cm, the taper is 60 °, the main shaft 5 is provided with a first fixing disc 7, three T-shaped grooves 8 are circumferentially arranged on the first fixing disc 7, four-jaw chucks 9 are arranged on the first fixing disc 7, and the four-jaw chucks 9 are conventional devices and will not be described in detail. The tailstock 1 is internally provided with a conical bearing 10-1, a ball bearing 10-2 and a conical bearing 10-3 in sequence.
The main shaft 5 is kept away from the one end of four-jaw chuck 9 and is provided with an ejecting device, the ejecting device includes nut 11 and complex screw ejector rod 12 with it, be provided with through-hole 13 that runs through in the main shaft 5, screw ejector rod 12 sets up with top 6 cooperation, rotate screw ejector rod 12 can be with top 6 ejecting main shaft 5, the main shaft 5 is kept away from the fixed round lock nut 14 that is provided with in one side of first fixed disk 7, round lock nut is provided with bearing position sleeve 15, bearing position sleeve 15 is used for adjusting the clearance of main shaft 5 upper bearing, there is the transition cover 16 with top sliding fit between top 6 and main shaft 5, transition cover 16 is removable with top 6 wearing parts. The tip 6 structure is convenient for positioning and installing the turbine unit blade.
As shown in fig. 1, a servo motor is arranged in the turntable 2, a mounting disc 17 is arranged on one side of the turntable 2, and the mounting disc 17 is rotatably connected with a second clamping device.
As shown in fig. 3 and 4, a first positioning center 18-1 and a second positioning center 18-2 are arranged on the second clamping device, the first positioning center 18-1 cannot be adjusted back and forth in length, the second positioning center 18-2 can be adjusted in length, the second positioning center 18-2 is locked by an adjusting nut 19, the adjusting nut 19 can be rotated to adjust the length of the second positioning center 18-2, a positioning shaft 20 is arranged at the center of the mounting plate 17, and the positioning shaft 20 is matched with the rotary table 2 and the mounting plate 17 to ensure that the rotary table 2 and the mounting plate 17 are concentrically arranged. The mounting disc 17 is provided with a clamping groove 21, the clamping groove 21 is a through groove, one is arranged in the clamping groove 21 and is provided with a first clamping claw 22-1 in a sliding manner, the other is arranged in the clamping groove 21 and is provided with a second clamping claw 22-2 in a sliding manner, the first clamping claw 22-1 and the second clamping claw 22-2 are used for clamping a turbine unit blade, the first clamping claw 22-1 and the second clamping claw 22-2 are connected through a stud 23, two ends of the stud 23 are provided with forward and reverse studs, one end of the stud 23 is in threaded fit with the first clamping claw 22-1, and the other end of the stud 23 is in threaded fit with the second clamping claw 22-2. The stud 23 is rotated to clamp or separate the first clamping jaw 22-1 and the second clamping jaw 22-2, so as to clamp the blade root process head of the steam turbine set blade 8 or release the blade root process head of the steam turbine set blade 8 to two sides, the operation is simple and convenient, the clamping time is saved, and the clamping manpower is saved.
Claims (6)
1. Steam turbine set blade profile processing frock, including first processingequipment and second processingequipment, its characterized in that: the novel tailstock processing device is characterized in that the first processing device is arranged on the left side, the second processing device is arranged on the right side, the first processing device comprises a tailstock, the second processing device comprises a rotary table, the tailstock and the rotary table are arranged on a workbench, a first sliding base plate is arranged between the workbench and the tailstock, a second sliding base plate is arranged between the workbench and the rotary table, the tailstock is provided with a main shaft, the main shaft can rotate, a telescopic tip is arranged at the center of the main shaft, the main shaft is provided with a first fixing disc, a T-shaped groove is circumferentially arranged on the first fixing disc, a four-jaw chuck is arranged on the first fixing disc, and a conical bearing, a ball bearing and a conical bearing are sequentially arranged inside the tailstock.
2. The steam turbine set blade profile machining tool according to claim 1, characterized in that: the main shaft is far away from one end of the four-jaw chuck and is provided with an ejecting device, the ejecting device comprises a nut and a threaded ejector rod matched with the nut, a through hole penetrating through the main shaft is formed in the main shaft, the threaded ejector rod is matched with the top, the top can be ejected out of the main shaft by rotating the threaded ejector rod, a round locking nut is fixedly arranged on one side, away from the first fixing disc, of the main shaft and is provided with a bearing positioning sleeve, the bearing positioning sleeve is used for adjusting a gap of a bearing on the main shaft, and a transition sleeve in sliding fit with the top is arranged between the top and the main shaft.
3. The steam turbine set blade profile machining tool according to claim 1 or 2, characterized in that: the rotary table is internally provided with a servo motor, one side of the rotary table is provided with a mounting disc, and the mounting disc is rotatably connected with a second clamping device.
4. The steam turbine set blade profile machining tool according to claim 3, characterized in that: the second clamping device is provided with a first positioning tip and a second positioning tip, and the second positioning tip is provided with an adjusting nut for locking.
5. The steam turbine set blade profile machining tool according to claim 4, characterized in that: the mounting disc is provided with two clamping grooves, one clamping groove is internally provided with a first clamping claw in a sliding manner, and the other clamping groove is internally provided with a second clamping claw in a sliding manner.
6. The steam turbine set blade profile machining tool according to claim 5, characterized in that: the first clamping jaw is connected with the second clamping jaw through a double-end stud, threads which are reversely arranged are arranged at two ends of the double-end stud, one end of the double-end stud is matched with the first clamping jaw in a threaded manner, and the other end of the double-end stud is matched with the second clamping jaw in a threaded manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225767.9U CN210649562U (en) | 2019-07-31 | 2019-07-31 | Steam turbine set blade profile machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921225767.9U CN210649562U (en) | 2019-07-31 | 2019-07-31 | Steam turbine set blade profile machining tool |
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| Publication Number | Publication Date |
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| CN210649562U true CN210649562U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921225767.9U Active CN210649562U (en) | 2019-07-31 | 2019-07-31 | Steam turbine set blade profile machining tool |
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| CN (1) | CN210649562U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222492A (en) * | 2020-09-14 | 2021-01-15 | 江苏大学 | Flexible clamp for processing blade steam passage |
| CN112247618A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN112828725A (en) * | 2020-12-22 | 2021-05-25 | 成都和鸿科技有限公司 | Machining tool and machining method for turbine blade of ultra-large gas turbine |
| CN114228208A (en) * | 2021-12-16 | 2022-03-25 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
-
2019
- 2019-07-31 CN CN201921225767.9U patent/CN210649562U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112222492A (en) * | 2020-09-14 | 2021-01-15 | 江苏大学 | Flexible clamp for processing blade steam passage |
| CN112222492B (en) * | 2020-09-14 | 2022-05-17 | 江苏大学 | Flexible clamp for processing blade steam passage |
| CN112247618A (en) * | 2020-09-30 | 2021-01-22 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN112247618B (en) * | 2020-09-30 | 2022-04-12 | 西安三航动力科技有限公司 | Special fixture and method for machining end face of tenon root of blade of aero-engine |
| CN112828725A (en) * | 2020-12-22 | 2021-05-25 | 成都和鸿科技有限公司 | Machining tool and machining method for turbine blade of ultra-large gas turbine |
| CN112828725B (en) * | 2020-12-22 | 2022-07-19 | 成都和鸿科技股份有限公司 | Machining tool and machining method for ultra-large combustion engine turbine blade |
| CN114228208A (en) * | 2021-12-16 | 2022-03-25 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
| CN114228208B (en) * | 2021-12-16 | 2023-08-22 | 浙江黄岩环日光学有限公司 | Child prevention and control lens mold and production process thereof |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211009 Address after: 618000 Building 1, No. 199, section 3, Tianshan South Road, Deyang City, Sichuan Province Patentee after: Sichuan Feige Technology Co.,Ltd. Address before: 618000 Building 2, No. 199, section 3, Tianshan South Road, Jingyang District, Deyang City, Sichuan Province Patentee before: Deyang Deyuan machinery manufacturing partnership (L.P.) |