CN108620926A - A kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion auxiliary compaction tool and its processing method - Google Patents
A kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion auxiliary compaction tool and its processing method Download PDFInfo
- Publication number
- CN108620926A CN108620926A CN201810350946.9A CN201810350946A CN108620926A CN 108620926 A CN108620926 A CN 108620926A CN 201810350946 A CN201810350946 A CN 201810350946A CN 108620926 A CN108620926 A CN 108620926A
- Authority
- CN
- China
- Prior art keywords
- changeover portion
- steam turbine
- compression bar
- positioning seat
- gas exhaust
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/30—Exhaust heads, chambers, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
A kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion auxiliary compaction tool and its processing method, it is related to steam turbine technology field.The present invention solves existing changeover portion in turning groove chamfering, and there are system of processing rigidity deficiencies, the problem of influencing the dimensional uniformity of groove circumferentially, and influence changeover portion processing quality.The positioning seat of changeover portion auxiliary compaction tool of the present invention is fixed in the center through hole of adaptor socket body for machine tool, the center of positioning seat opens up threaded hole, compression bar is vertically arranged in the side of changeover portion, the center of compression bar opens up through-hole, connecting rod is that both ends are equipped with externally threaded rod-like structure, one end of connecting rod is threadedly coupled with positioning seat, and the other end of connecting rod passes through compression bar and affixed with compression bar by locking nut.The present invention is used for turning changeover portion groove chamfering, is effectively improved installation accuracy and clamping accuracy, and welding groove radial dimension precision reaches within 0.1mm, ensure that the processing quality of changeover portion.
Description
Technical field
The present invention relates to steam turbine technology fields, more particularly to a kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion auxiliary pressure
Clamping tool and its processing method.
Background technology
Changeover portion is the transition portion of steam turbine high-pressure cylinder gas exhaust piping, and the end of changeover portion is equipped with welds with both ends pipeline
The welding groove of one, it is outstanding deep larger when turning groove chamfering so that system of processing rigidity is insufficient, shadow since changeover portion is longer
The dimensional uniformity of groove circumferentially is rung, changeover portion processing quality is influenced.
In conclusion existing changeover portion, in turning groove chamfering, there are system of processing rigidity deficiencies, influence groove edge
The dimensional uniformity of circumference, and the problem of influence changeover portion processing quality.
Invention content
The purpose of the present invention is to solve existing changeover portions in turning groove chamfering, and there are system of processing rigidity not
Foot influences the dimensional uniformity of groove circumferentially, and the problem of influence changeover portion processing quality, and then a kind of steam turbine high-pressure cylinder
Gas exhaust piping changeover portion assists compaction tool and its processing method.
The technical scheme is that：
A kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion assists compaction tool, it include positioning seat, compression bar, connecting rod and
Locking nut, positioning seat are fixed in the center through hole of adaptor socket body for machine tool, and the center of positioning seat opens up threaded hole, and compression bar is perpendicular
Straight to be arranged in the side of changeover portion, the center of compression bar opens up through-hole, and connecting rod is that both ends are equipped with externally threaded rod-like structure,
One end of connecting rod is threadedly coupled with positioning seat, and the other end of connecting rod passes through compression bar and affixed with compression bar by locking nut.
Further, positioning seat is constituted by the first integrated cylinder and the second cylinder is made, the outer diameter and machine of the first cylinder
The center through hole internal diameter of bed chuck body is consistent, and the outer diameter of the second cylinder is more than the center through hole internal diameter of adaptor socket body for machine tool.
Further, the length of compression bar is more than the maximum inner diameter of changeover portion.
Further, the length of connecting rod is more than the length of changeover portion.
A method of processing steam turbine high-pressure cylinder gas exhaust piping changeover portion, a kind of use using auxiliary compaction tool
The method for assisting compaction tool processing steam turbine high-pressure cylinder gas exhaust piping changeover portion is realized by following steps,
Step 1: cast blank；
Step 2: ultrasonic examination processing is carried out to cast blank, to examine blank cast inside quality；
Step 3: fixed changeover portion：
First, positioning seat is mounted in the center through hole of adaptor socket body for machine tool, utilizes external pull rod and positioning seat left end
Threaded hole cooperation tenses positioning seat on adaptor socket body for machine tool,
Then, using machine chuck pawl radial clamping changeover portion left end outer circle,
Finally, using compression bar, connecting rod and locking nut by changeover portion axial compression on adaptor socket body for machine tool, complete transition
The fixation of section；
Step 4: turning changeover portion both ends outer circle and welding groove chamfering：
Using lathe turning changeover portion right end outer circle and the first welding groove chamfering and the second welding groove chamfering, process
Using same installation way turning changeover portion left end outer circle and third welding groove chamfering and the 4th welding groove chamfering after finishing；
Step 5: changeover portion magnetic powder inspection is handled：
Magnetic powder inspection is carried out to changeover portion both ends size and welding groove chamfering, to ensure changeover portion appearance after turning
Face processing quality zero defect；
Step 6: pincers worker, by all seamed edge roundings of changeover portion, printed drawings labelled notation so far completes the processing of changeover portion.
Further, a diameter of Φ of processing of the changeover portion right end outer circle described in step 41, Φ1=553mm, the first weldering
The machining angle for connecing groove chamfering is α1, α1=45 °, the machining angle of the second welding groove chamfering is α2, α2=20 °.
Further, a diameter of Φ of processing of the changeover portion left end outer circle described in step 42, Φ2=508mm, third weldering
Meet the machining angle α of groove chamfering3, α3=45 °, the machining angle α of the 4th welding groove chamfering4, α4=37.5 °.
The present invention has the following effects that compared with prior art：
1, the method for use of the invention auxiliary compaction tool processing steam turbine high-pressure cylinder gas exhaust piping changeover portion, through reality
Using acquirement good result.When turning changeover portion welding groove chamfering, changeover portion is radially clamped using machine chuck pawl, even
Extension bar, compression bar and locking nut assist changeover portion the clamping mode being pressed on machine chuck, this processing method to have in an axial direction
Effect ground improves installation accuracy and clamping accuracy, and when turning welding groove, radial dimension precision ensure that up within 0.1mm
Cross the processing quality of section.
2, present invention auxiliary compaction tool is simple in structure, easy to process, easy to spread, has preferable economic value.
Description of the drawings
Fig. 1 is the machining sketch chart of changeover portion；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the structural schematic diagram of positioning seat；
Fig. 4 is the structural schematic diagram of compression bar；
Fig. 5 is sectional views of the Fig. 4 at A-A；
Fig. 6 is the structural schematic diagram of connecting rod；
Fig. 7 is the structural schematic diagram of changeover portion；
Fig. 8 is partial enlarged views of the Fig. 7 at M；
Fig. 9 is partial enlarged views of the Fig. 7 at N.
Specific implementation mode
Specific implementation mode one：Illustrate present embodiment, a kind of turbine high-pressure of present embodiment in conjunction with Fig. 1 and Fig. 2
Cylinder gas exhaust piping changeover portion assists compaction tool, it includes positioning seat 1, compression bar 2, connecting rod 3 and locking nut 4, and positioning seat 1 is solid
It is scheduled in the center through hole of adaptor socket body for machine tool 6, the center of positioning seat 1 opens up threaded hole, and compression bar 2 is vertically arranged in changeover portion
5 side, the center of compression bar 2 open up through-hole, and connecting rod 3 is that both ends are equipped with externally threaded rod-like structure, and the one of connecting rod 3
End is threadedly coupled with positioning seat 1, and the other end of connecting rod 3 is across compression bar 2 and affixed by locking nut 4 and compression bar 2.
Specific implementation mode two：Embodiment is described with reference to Fig. 3, and the positioning seat 1 of present embodiment is integrated by being made
First cylinder 1-1 and the second cylinder 1-2 are constituted, the outer diameter of the first cylinder 1-1 and the center through hole internal diameter one of adaptor socket body for machine tool 6
It causes, the outer diameter of the second cylinder 1-2 is more than the center through hole internal diameter of adaptor socket body for machine tool 6.So set, positioning seat 1 is mounted on machine
In the center through hole of bed chuck body 6, positioning seat 1 is tensed in machine using the cooperation of the threaded hole of external pull rod and 1 left end of positioning seat
On bed chuck body 6, the shoulder that the first cylinder 1-1 and the second cylinder 1-2 are constituted plays the role of positioning.Other compositions and connection are closed
It is same as the specific embodiment one.
Specific implementation mode three：Illustrate that present embodiment, the length of the compression bar 2 of present embodiment are more than in conjunction with Fig. 4 and Fig. 5
The maximum inner diameter of changeover portion 5.So set, compression bar 2 is avoided to enter in the endoporus of changeover portion 5, axial compression mistake can not be played
Cross the effect of section 5.Other compositions and connection relation are the same as one or two specific embodiments.
Specific implementation mode four：Illustrate that present embodiment, the length of the connecting rod 3 of present embodiment are big in conjunction with Fig. 6 and Fig. 7
In the length of changeover portion 5.So set, one end of connecting rod 3 and positioning seat 1 are affixed, the other end of connecting rod 3 passes through compression bar 2,
And the radial compaction of changeover portion 5 is realized by locking nut 4.Other compositions and connection relation and specific implementation mode one, two or
Three is identical.
Specific implementation mode five：Illustrate that present embodiment, a kind of of present embodiment use auxiliary pressure in conjunction with Fig. 1 and Fig. 2
The method that clamping tool processes steam turbine high-pressure cylinder gas exhaust piping changeover portion, it is characterised in that：A kind of use assists compressing work
The method of tool processing steam turbine high-pressure cylinder gas exhaust piping changeover portion is realized by following steps,
Step 1: cast blank；
Step 2: ultrasonic examination processing is carried out to cast blank, to examine blank cast inside quality；
Step 3: fixed changeover portion 5：
First, positioning seat 1 is mounted in the center through hole of adaptor socket body for machine tool 6, utilizes external pull rod and 1 left end of positioning seat
Threaded hole cooperation by positioning seat 1 tense on adaptor socket body for machine tool 6,
Then, using 7 radial clamping changeover portion of machine chuck pawl, 5 left end outer circle,
Finally, using compression bar 2, connecting rod 3 and locking nut 4 by 5 axial compression of changeover portion on adaptor socket body for machine tool 6, it is complete
At the fixation of changeover portion 5；
Step 4: 5 both ends outer circle of turning changeover portion and welding groove chamfering：
Using 5 right end outer circle of lathe turning changeover portion and the first welding groove chamfering and the second welding groove chamfering, processing
After fallen using same 5 left end outer circle of installation way turning changeover portion and third welding groove chamfering and the 4th welding groove
Angle；
Step 5: 5 magnetic powder inspection of changeover portion is handled：
Magnetic powder inspection is carried out to 5 both ends size of changeover portion and welding groove chamfering, to ensure after turning outside changeover portion 5
Suface processing quality zero defect；
Step 6: pincers worker, by 5 all seamed edge roundings of changeover portion, printed drawings labelled notation so far completes adding for changeover portion 5
Work.
Specific implementation mode six：Illustrate present embodiment in conjunction with Fig. 7 and Fig. 9, four the step of present embodiment described in
The a diameter of Φ of processing of 5 right end outer circle of changeover portion1, Φ1=553mm, the machining angle α of the first welding groove chamfering1, α1=
45 °, the machining angle α of the second welding groove chamfering2, α2=20 °.Other compositions and connection relation and specific implementation mode one,
Two, three, four or five are identical.
Specific implementation mode seven：Illustrate present embodiment in conjunction with Fig. 7 and Fig. 8, four the step of present embodiment described in
The processing diameter of phi of 5 left end outer circle of changeover portion2, Φ2=508mm, the machining angle α of third welding groove chamfering3, α3=45 °,
The machining angle α of 4th welding groove chamfering4, α4=37.5 °.Other compositions and connection relation and specific implementation mode one, two,
Three, four, five or six are identical.
Claims (7)
1. a kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion assists compaction tool, it is characterised in that：It include positioning seat (1),
Compression bar (2), connecting rod (3) and locking nut (4), positioning seat (1) are fixed in the center through hole of adaptor socket body for machine tool (6), positioning
The center of seat (1) opens up threaded hole, and compression bar (2) is vertically arranged in the side of changeover portion (5), the center of compression bar (2)
Through-hole is opened up, connecting rod (3) is that both ends are equipped with externally threaded rod-like structure, and one end and positioning seat (1) screw thread of connecting rod (3) connect
It connects, the other end of connecting rod (3) passes through compression bar (2) and affixed by locking nut (4) and compression bar (2).
2. a kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion according to claim 1 assists compaction tool, feature to exist
In：Positioning seat (1) is constituted by integrated the first cylinder (1-1) and the second cylinder (1-2) is made, the outer diameter of the first cylinder (1-1)
Consistent with the center through hole internal diameter of adaptor socket body for machine tool (6), the outer diameter of the second cylinder (1-2) is more than the center of adaptor socket body for machine tool (6)
Through-hole internal diameter.
3. a kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion according to claim 2 assists compaction tool, feature to exist
In：The length of compression bar (2) is more than the maximum inner diameter of changeover portion (5).
4. a kind of steam turbine high-pressure cylinder gas exhaust piping changeover portion according to claim 1,2 or 3 assists compaction tool, special
Sign is：The length of connecting rod (3) is more than the length of changeover portion (5).
5. a kind of side processing steam turbine high-pressure cylinder gas exhaust piping changeover portion using auxiliary compaction tool described in claim 1
Method, it is characterised in that：It is described it is a kind of using auxiliary compaction tool processing steam turbine high-pressure cylinder gas exhaust piping changeover portion method be
It is realized by following steps,
Step 1: cast blank；
Step 2: ultrasonic examination processing is carried out to cast blank, to examine blank cast inside quality；
Step 3: fixed changeover portion (5)：
First, positioning seat (1) is mounted in the center through hole of adaptor socket body for machine tool (6), it is left using external pull rod and positioning seat (1)
The threaded hole cooperation at end tenses positioning seat (1) on adaptor socket body for machine tool (6),
Then, using machine chuck pawl (7) radial clamping changeover portion (5) left end outer circle,
Finally, using compression bar (2), connecting rod (3) and locking nut (4) by changeover portion (5) axial compression in adaptor socket body for machine tool (6)
On, complete the fixation of changeover portion (5)；
Step 4: turning changeover portion (5) both ends outer circle and welding groove chamfering：
Using lathe turning changeover portion (5) right end outer circle and the first welding groove chamfering and the second welding groove chamfering, process
It is fallen using same installation way turning changeover portion (5) left end outer circle and third welding groove chamfering and the 4th welding groove after finishing
Angle；
Step 5: changeover portion (5) magnetic powder inspection is handled：
Magnetic powder inspection is carried out to changeover portion (5) both ends size and welding groove chamfering, outside with changeover portion (5) after ensureing turning
Suface processing quality zero defect；
Step 6: pincers worker, by all seamed edge roundings of changeover portion (5), printed drawings labelled notation so far completes adding for changeover portion (5)
Work.
6. a kind of use according to claim 5 assists compaction tool processing steam turbine high-pressure cylinder gas exhaust piping changeover portion
Method, it is characterised in that：The a diameter of Φ of processing of changeover portion (5) right end outer circle described in step 41, Φ1=553mm, first
The machining angle α of welding groove chamfering1, α1=45 °, the machining angle α of the second welding groove chamfering2, α2=20 °.
7. a kind of use according to claim 5 or 6 assists compaction tool to process steam turbine high-pressure cylinder gas exhaust piping transition
The method of section, it is characterised in that：The processing diameter of phi of changeover portion (5) left end outer circle described in step 42, Φ2=508mm, the
The machining angle α of three welding groove chamferings3, α3=45 °, the machining angle α of the 4th welding groove chamfering4, α4=37.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350946.9A CN108620926B (en) | 2018-04-18 | 2018-04-18 | A kind of processing method of steam turbine high-pressure cylinder gas exhaust piping changeover portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810350946.9A CN108620926B (en) | 2018-04-18 | 2018-04-18 | A kind of processing method of steam turbine high-pressure cylinder gas exhaust piping changeover portion |
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| Publication Number | Publication Date |
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| CN108620926A true CN108620926A (en) | 2018-10-09 |
| CN108620926B CN108620926B (en) | 2019-11-19 |
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| US20130177407A1 (en) * | 2012-01-06 | 2013-07-11 | General Electric Company | Rotor, a steam turbine and a method for producing a rotor |
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| CN105563152A (en) * | 2014-11-07 | 2016-05-11 | 三峡大学 | Clamp for processing thin-wall bush |
| CN206484022U (en) * | 2017-02-15 | 2017-09-12 | 安徽科幂机械科技有限公司 | A kind of large-diameter thin-wall cylinder turning tool |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009363A (en) * | 2010-11-29 | 2011-04-13 | 大连名阳实业有限公司 | Thin-wall piece lathe clamp |
| CN202356947U (en) * | 2011-12-09 | 2012-08-01 | 中山火炬职业技术学院 | Special fixture for lathe machining of thin-walled disc type workpieces |
| US20130177407A1 (en) * | 2012-01-06 | 2013-07-11 | General Electric Company | Rotor, a steam turbine and a method for producing a rotor |
| CN103231074A (en) * | 2013-04-18 | 2013-08-07 | 哈尔滨汽轮机厂有限责任公司 | Machining method of inner circle and outer circle of elastic ring provided with opening and made of high temperature alloy |
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| Publication number | Publication date |
|---|---|
| CN108620926B (en) | 2019-11-19 |
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Effective date of registration: 20221215 Address after: 150000 building 3, high tech production base, Nangang District, Harbin City, Heilongjiang Province Patentee after: HARBIN TURBINE Co.,Ltd. Patentee after: HADIAN POWER EQUIPMENT NATIONAL ENGINEERING RESEARCH CENTER CO.,LTD. Address before: 150046 No. three power road 345, Xiangfang District, Heilongjiang, Harbin Patentee before: HARBIN TURBINE Co.,Ltd. |