CN108608162A - A kind of processing method of the closed guide vane of centrifugal compressor inner casing - Google Patents
A kind of processing method of the closed guide vane of centrifugal compressor inner casing Download PDFInfo
- Publication number
- CN108608162A CN108608162A CN201810672431.0A CN201810672431A CN108608162A CN 108608162 A CN108608162 A CN 108608162A CN 201810672431 A CN201810672431 A CN 201810672431A CN 108608162 A CN108608162 A CN 108608162A
- Authority
- CN
- China
- Prior art keywords
- upper casing
- casing
- guide vane
- closed guide
- inner casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/08—Disc-type cutters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/202—Number of cutting edges three
Abstract
The present invention provides a kind of processing methods of the closed guide vane of centrifugal compressor stator part inner casing, include the following steps：By the upper casing inside and outside circle size smart car of inner casing to unilateral 1mm surpluses state；On the basis of the upper casing its split, places it on numerical control triaxial boring and milling platen and level up, then compress the upper casing；It is levelling that table is played on the basis of the upper casing end face, determines lathe X-axis zero, Y-axis zero and Z axis zero；According to programming cutter track feed, two rows of closed guide vanes are processed on the upper casing endoporus and outer circle respectively；The closed guide vane of the upper casing after processing is completed, in aforementioned manners to lower casing machining enclosed guide vane.The processing method of the closed guide vane of centrifugal compressor stator part inner casing provided by the invention, not only substantially increases processing efficiency, reduces production cost, also improve processing quality.
Description
Technical field
The present invention relates to guide vane processing technique field, more particularly to a kind of closed water conservancy diversion of centrifugal compressor inner casing
The processing method of blade.
Background technology
Referring to Fig. 1, the inner casing 10 of centrifugal compressor is the barrel shaped structure of φ 1075*1040mm, during inner casing 10 passes through
Facet is divided into upper and lower enclosure two parts, and upper and lower enclosure is connected as an entirety by split by bolt and taper positioning pin.
The material type for processing inner casing is steel-casting, material trademark ZG230-450.Inner casing 10 is usually used in vertical dissection type centrifugation
In formula compressor, common vertical dissection type centrifugal compressor is forging chassis form.New-type vertical dissection type is centrifugal
In compressor, inner casing 10 uses the form of plank assembly welding, such high intensity, monoblock type, band enclosed guide vane 11
Inner casing 10 become the important composition part in vertical dissection type centrifugal compressor.
Referring to Fig. 2, the enclosed guide vane 11 of inner casing 10 has exit width narrow (18.6mm), and blade pitch angle is big
The features such as, the current 10 enclosed guide vanes 11 for processing inner casing, using in the four-axle linked boring-mill work with rotary table
The heart processes guide vane 11 by radial cutter shaft 21 in such a way that layer is cut.Since the runner of guide vane 11 is very narrow,
φ 16mm, the indexable formula slotting cutter 20 of length 180mm can only be used to be processed.20 draw ratio of milling cutter has been approached 1：12,
Considerably beyond conventional milling cutters 1：4 draw ratio requirement, therefore can only ensure knife by reducing the back engagement of the cutting edge in cutting process
Tool do not occur to play knife, shake knife the problems such as, the average back engagement of the cutting edge of cutter can only reach 0.1mm in process, and process time is often
Need 60 days.This processing method is also relatively high to the working ability requirement of lathe, needs to be joined with four axis with rotary table
Dynamic boring-milling machine tool 22, and this processing method uses lengthening cutter, and cutter is expensive and needs to customize, meanwhile, this
Kind processing method is not long there is only the process-cycle, and processing efficiency is low, the high problem of production cost, and the guide vane after processing
There is also the process quality issues such as rough.
Invention content
Technical problem to be solved by the invention is to provide the good centrifugal compressors of a kind of high in machining efficiency and processing quality
The processing method of the closed guide vane of inner casing.
In order to solve the above technical problems, adding the present invention provides a kind of closed guide vane of centrifugal compressor inner casing
Work method, includes the following steps：
By the upper casing inside and outside circle size smart car of inner casing to unilateral 1mm surpluses state on numerical control vertical lathe lathe；
It by the upper casing on the basis of its split, is placed on numerical control triaxial boring and milling platen and levels up, then will
The upper casing compresses；
It is levelling that table is played on the basis of the upper casing end face, using seek side probe to the upper casing Internal hole positioning seam allowance into
In row point, determines that lathe X-axis zero, recycling seek side probe and determine Y-axis zero to split progress centering, three face of right angle is installed
Angle of throat disk carries out using clearance gauge on the upper casing end face, to knife, determining Z axis zero；
According to programming cutter track feed, two rows of closed guide vanes are processed on the upper casing endoporus and outer circle respectively；
The closed guide vane of the upper casing after processing is completed, in aforementioned manners to lower casing machining enclosed water conservancy diversion
Blade；
Pincers repair the upper and lower casing residual position, by upper and lower casing zoarium.
Further, it is that upper casing is placed on equal-height padding iron to level up that the upper casing, which is leveled up, the equal-height padding iron
Height is more than 200mm, and the parallels width of the upper casing front is subject to parallels without departing from the upper casing outer round surface.
Further, the upper casing compression is to push down spanner spatial position in the middle part of upper casing, and institute using round end clamp
It states round end clamp lower part and does Auxiliary support using jackscrew.
Further, three face angle of throat disk of the right angle includes circular beater plate and the rectangular knife that is arranged on circular beater plate circumference
Blade is arranged in three sides of piece, the square blade.
Further, being provided centrally with for three face angle of throat disk of the right angle connects with the main shaft of the numerical control triaxial boring and milling lathe
The connecting hole connect is provided with the threaded hole being connect with the main shaft of the numerical control triaxial boring and milling lathe around the connecting hole, described
Three face angle of throat disk of right angle is axially connect with the main shaft of the numerical control triaxial boring and milling lathe.
The processing method of a kind of closed guide vane of centrifugal compressor inner casing provided by the invention, using common number
Three axis boring-milling centers are controlled, the radial cutter axis orientation in conventional machining is converted to axial cutter shaft, utilizes the φ 315mm of standard
Three face angle of throat disk of right angle replaces draw ratio up to 1：The 16 closed guide vane for lengthening slotting cutter processing inner casing, in 5 days
It can machine, substantially increase processing efficiency, reduce production cost, moreover, the enclosed guide vane table that processing obtains
Surface roughness can promote Ra3.2, improve processing quality.
Description of the drawings
Fig. 1 is the structural schematic diagram of the closed guide vane of centrifugal compressor inner casing provided in an embodiment of the present invention；
Fig. 2 is the processing method schematic diagram for the closed guide vane of centrifugal compressor inner casing that the prior art provides；
Fig. 3 is that the processing method of the closed guide vane of centrifugal compressor inner casing provided in an embodiment of the present invention is illustrated
Figure；
Fig. 4 be the closed guide vane of centrifugal compressor inner casing provided in an embodiment of the present invention processing method in use
Three face angle of throat disk of right angle structural schematic diagram.
Specific implementation mode
Referring to Fig. 3, a kind of processing side of the closed guide vane of centrifugal compressor inner casing provided in an embodiment of the present invention
The casing of two parts up and down of inner casing is processed, includes the following steps by method respectively：
Step 1：First process upper casing 10.Before the closed guide vane 11 of milling upper casing 10, first by upper casing 10
Inside and outside circle size smart car to unilateral 1mm surpluses state, not only can to avoid due to 10 inside and outside circle size surplus of upper casing it is excessive
And numerical control triaxial boring and milling machine tool chief axis 31 is caused to interfere and collide with 10 surfaces externally and internally of upper casing, and retain unilateral 1mm
Surplus can avoid the dimensional stability that inner casing is destroyed when processing, together as the support construction of processing enclosed guide vane again
When, postorder smart car can also be facilitated by retaining 1mm surpluses, ensure the Common Difference ＆ Cooperation of casing.
Step 2：On the basis of the split of upper casing 10, upper casing 10 is placed in numerical control triaxial boring and milling platen 32
On, and leveled up by equal-height padding iron 33, the height of equal-height padding iron 33 need to be more than 200mm, cutter 30 when ensureing to process when leveling up
It is not interfered with workbench 32, meanwhile, the parallels 33 of 10 front of upper casing will use the parallels of narrower width, not with parallels 33
Expose subject to 10 inner and outer round surface of upper casing, upper casing 10 when processing is avoided to be interfered with machine tool chief axis 31.It is utilized after leveling up
Round end clamp pushes down 10 middle part spanner spatial position of upper casing, and pressing plate lower part does Auxiliary support using jackscrew, prevents pressing force mistake
Upper casing 10 is caused to be deformed greatly.Referring to Fig. 4, for cutter 30 using three face angle of throat disk of the right angles φ 315mm, φ 315mm are straight
Three face angle of throat disk of angle includes circular beater plate 301 and the square blade 302 that is fixed on 301 circumference of circular beater plate, square blade 302
Three sides be arranged blade.There are one connect with numerical control triaxial boring and milling machine tool chief axis 31 for circular beater plate 301 centrally disposed
Connecting hole 303, three face angle of throat disk 30 of right angle are axially connected by connecting hole 303 and numerical control triaxial boring and milling machine tool chief axis 31 by bolt
It connects, in order to enhance the stability that three face angle of throat disk 30 of right angle is connect with numerical control triaxial boring and milling machine tool chief axis 31, in circular beater plate 301
Connecting hole 303 around be also uniformly arranged that there are four the threaded hole 304 that can be connect with numerical control triaxial boring and milling machine tool chief axis 31, right angles
Three face angle of throat disks 30 are further spirally connected by threaded hole 304 with screw with numerical control triaxial boring and milling machine tool chief axis 31.
Step 3：After upper casing 10 compresses on numerical control triaxial boring and milling platen 32, on the basis of 10 end face of upper casing
It is levelling to play table, 10 Internal hole positioning seam allowance of upper casing is divided using side probe is sought, determines that lathe X-axis zero, recycling are sought
Side is popped one's head in determines Y-axis zero to the split progress centering of upper casing 10, then installs three face angle of throat disk 30 of the right angles φ 315mm
On numerical control triaxial boring and milling machine tool chief axis 31, carry out on 10 end face of upper casing, to knife, determining Z axis zero using clearance gauge.So far,
Setting completed for machine tooling coordinate system, and the centering of upper casing 10 finishes, and the preparation before processing is fully completed.
Step 4：According to programming cutter track feed, the two rows on upper casing 10 are sealed on 10 endoporus of upper casing and outer circle respectively
Enclosed guide vane 11 is processed.Due to three face angle of throat disk 30 of the right angles φ 315mm square blade 302 there are three side knife
Sword can be carried out machining, and since the diameter of three face angle of throat disk 30 of right angle is far longer than the machine tool chief axis 31 being attached thereto
The diameter of axle, three face angle of throat disk 30 of such right angle can realize easily to the processing of the big empty avoiding grooving of upper casing 10.Upper casing 10 adds
After work, lower casing is processed according to processing method identical with processing upper casing 10.
Step 5：Upper and lower casing carries out pincers after processing is completed, to some residual positions of upper and lower enclosure and repaiies, last pincers worker dress
Match, upper and lower enclosure is installed together by the shop bolt of upper and lower enclosure split and conjunction bolt to be formed one it is complete in
Casing.Finally, smart car is continued to the inner casing assembled and removes surplus, until smart car to drawing size.
The processing method of a kind of closed guide vane of centrifugal compressor inner casing provided in an embodiment of the present invention, using big
Three face angle of throat disk of diameter right angle realizes big empty avoiding by using boring machine lathe φ 150mm main shafts, big to hang deep machining.It is logical
Change installation way is crossed, inner casing split is allowed to be parallel to platen, it is levelling to play table using inner casing end face, in upper lower half
Casing is individually processed so that the application of axial cutter shaft is possibly realized.Compared to radial cutter shaft, axial cutter shaft, which has, leads enclosed
Stream blade is converted into two-dimensional ruled surface from three-dimensional space curved surface so that directly being become using cutter side edge finishing blade can
Can, relative to radial cutter shaft, can blade and water passage surface be directly machined to Ra3.2 or more, improve processing quality.Also,
Relative to 1：16 lengthening milling cutter, which back engagement of the cutting edge is up to 15mm, and working engagement of the cutting edge maximum is up to 80mm wide, therefore machining
Original 60 days process-cycles can shorten within 5 days, greatly improve processing efficiency, reduce processing by ultrahigh in efficiency
Cost.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (5)
1. a kind of processing method of the closed guide vane of centrifugal compressor inner casing, which is characterized in that include the following steps：
By the upper casing inside and outside circle size smart car of inner casing to unilateral 1mm surpluses state on numerical control vertical lathe lathe；
By the upper casing on the basis of its split, it is placed on numerical control triaxial boring and milling platen and levels up, it then will be described
Upper casing compresses；
It is levelling that table is played on the basis of the upper casing end face, and the upper casing Internal hole positioning seam allowance is divided using side probe is sought
In, it determines that lathe X-axis zero, recycling seek side probe and determine Y-axis zero to split progress centering, three face angle of throat of right angle is installed
Disk carries out using clearance gauge on the upper casing end face, to knife, determining Z axis zero；
According to programming cutter track feed, two rows of closed guide vanes are processed on the upper casing endoporus and outer circle respectively；
The closed guide vane of the upper casing after processing is completed, in aforementioned manners to lower casing machining enclosed water conservancy diversion leaf
Piece；
Pincers repair the upper and lower casing residual position, by upper and lower casing zoarium.
2. the processing method of the closed guide vane of centrifugal compressor inner casing according to claim 1, it is characterised in that：
It is that upper casing is placed on equal-height padding iron to level up that the upper casing, which is leveled up, and the equal-height padding iron height is more than 200mm, and institute
The parallels width for stating upper casing front is subject to parallels without departing from the upper casing outer round surface.
3. the processing method of the closed guide vane of centrifugal compressor inner casing according to claim 1, it is characterised in that：
The upper casing compression is to push down spanner spatial position in the middle part of upper casing using round end clamp, and the round end clamp lower part utilizes
Jackscrew does Auxiliary support.
4. the processing method of the closed guide vane of centrifugal compressor inner casing according to claim 1, it is characterised in that：
Three face angle of throat disk of the right angle includes circular beater plate and the square blade that is arranged on circular beater plate circumference, the square blade
Blade is arranged in three sides.
5. the processing method of the closed guide vane of centrifugal compressor inner casing according to claim 4, it is characterised in that：
Three face angle of throat disk of the right angle is provided centrally with the connecting hole being connect with the main shaft of the numerical control triaxial boring and milling lathe, the company
Meet the threaded hole for being provided with around hole and being connect with the main shaft of the numerical control triaxial boring and milling lathe, three face angle of throat disk of the right angle and institute
The main shaft for stating numerical control triaxial boring and milling lathe axially connects.
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| CN201810672431.0A CN108608162A (en) | 2018-06-26 | 2018-06-26 | A kind of processing method of the closed guide vane of centrifugal compressor inner casing |
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| CN201810672431.0A CN108608162A (en) | 2018-06-26 | 2018-06-26 | A kind of processing method of the closed guide vane of centrifugal compressor inner casing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909679A (en) * | 2019-04-16 | 2019-06-21 | 哈尔滨电机厂有限责任公司 | A kind of raising divides valve seat ring Aperture precision method |
| CN112589168A (en) * | 2020-12-02 | 2021-04-02 | 航天科工哈尔滨风华有限公司 | Method for machining inner cavity of special-shaped thin-wall cabin section |
| CN112658346A (en) * | 2020-12-22 | 2021-04-16 | 河北金环模具有限公司 | Operation method for machining right angle on molded surface of 3D curved surface part |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201969936U (en) * | 2011-02-18 | 2011-09-14 | 哈尔滨汽轮机厂有限责任公司 | Three-face-edge milling cutter with mechanically-clamped vertical blade |
| CN102303208A (en) * | 2011-08-22 | 2012-01-04 | 哈尔滨汽轮机厂有限责任公司 | Method for processing T-shaped groove of nozzle chamber of cylinder of steam turbine |
| CN104646941A (en) * | 2014-12-01 | 2015-05-27 | 周大利 | Processing method of cylinder chamber of large turbine |
| CN106312158A (en) * | 2016-09-30 | 2017-01-11 | 中国南方航空工业(集团)有限公司 | Chute machining method for inner wall face of case of aero-engine |
| CN108145221A (en) * | 2017-12-22 | 2018-06-12 | 沈阳透平机械股份有限公司 | Pipeline pump abdominal cavity processing method |
-
2018
- 2018-06-26 CN CN201810672431.0A patent/CN108608162A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201969936U (en) * | 2011-02-18 | 2011-09-14 | 哈尔滨汽轮机厂有限责任公司 | Three-face-edge milling cutter with mechanically-clamped vertical blade |
| CN102303208A (en) * | 2011-08-22 | 2012-01-04 | 哈尔滨汽轮机厂有限责任公司 | Method for processing T-shaped groove of nozzle chamber of cylinder of steam turbine |
| CN104646941A (en) * | 2014-12-01 | 2015-05-27 | 周大利 | Processing method of cylinder chamber of large turbine |
| CN106312158A (en) * | 2016-09-30 | 2017-01-11 | 中国南方航空工业(集团)有限公司 | Chute machining method for inner wall face of case of aero-engine |
| CN108145221A (en) * | 2017-12-22 | 2018-06-12 | 沈阳透平机械股份有限公司 | Pipeline pump abdominal cavity processing method |
Non-Patent Citations (1)
| Title |
|---|
| 王雪峰: "改制槽铣刀加工沟槽", 《机械制造》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909679A (en) * | 2019-04-16 | 2019-06-21 | 哈尔滨电机厂有限责任公司 | A kind of raising divides valve seat ring Aperture precision method |
| CN112589168A (en) * | 2020-12-02 | 2021-04-02 | 航天科工哈尔滨风华有限公司 | Method for machining inner cavity of special-shaped thin-wall cabin section |
| CN112589168B (en) * | 2020-12-02 | 2023-03-21 | 航天科工哈尔滨风华有限公司 | Method for machining inner cavity of special-shaped thin-wall cabin section |
| CN112658346A (en) * | 2020-12-22 | 2021-04-16 | 河北金环模具有限公司 | Operation method for machining right angle on molded surface of 3D curved surface part |
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Application publication date: 20181002 |
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