CN104191314A - Positioning and machining method for datum plane of guide vane of power turbine of gas turbine - Google Patents
Positioning and machining method for datum plane of guide vane of power turbine of gas turbine Download PDFInfo
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- CN104191314A CN104191314A CN201410384414.9A CN201410384414A CN104191314A CN 104191314 A CN104191314 A CN 104191314A CN 201410384414 A CN201410384414 A CN 201410384414A CN 104191314 A CN104191314 A CN 104191314A
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- guide vane
- gas turbine
- positioning
- power turbine
- vane sheet
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
- B23Q15/22—Control or regulation of position of tool or workpiece
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention provides a positioning and machining method for a datum plane of a guide vane of a power turbine of a gas turbine, and relates to positioning and machining methods of datum planes of guide vanes. The positioning and machining method aims to solve the problems that in an existing positioning and machining process of a guide vane of a power turbine of a gas turbine, a steam passage and a steam passage arc are assembled and positioned inconsistently, a gap between a steam discharge plane of a vane root and a steam discharge plane of a vane top cannot be guaranteed, accuracy of the steam passage arc cannot be guaranteed, and the steam passage is damaged. The positioning and machining method mainly comprises the following steps that firstly, four points are found on a vane root surface of a blank of the guide vane of the power turbine of the gas turbine through a measuring tool; secondly, the margin of an arc on the steam discharge side of the blank of the guide vane of the power turbine of the gas turbine is measured; thirdly, six positioning points corresponding to a first positioning base, a second positioning base, a third positioning base, a fourth positioning base, a fifth positioning base and a sixth positioning base are measured through a feeler gauge. The method is used for positioning and machining of the datum plane of the guide vane of the power turbine of the gas turbine.
Description
Technical field
The present invention relates to a kind of guide vane datum level positioning and processing method.
Background technology
Gas Turbine Power turbine guide vane sheet is precision pouring blade, material is special, hardness is high, shape is special, steam passage face is larger, its assembling is the assembled portion of processing other of locating of pouring into a mould later working portion steam passage, comprise blade root, integral shroud, into and out of vapour side plane etc., in process and assemble, also to guarantee that working portion steam passage (steam passage cast is not processed later) is consistent, processing technology datum level comprises that blade root and leaf eject the drop of vapour side plane and the processing of external arc operation, and it has a certain impact with respect to the position of steam passage.Therefore will be with the steam passage after cast and steam passage circular arc location, adding man-hour can't be excessive because of pressure, to steam passage, leave impression, also to guarantee that blade root and leaf eject drop and the steam passage circular arc of vapour side plane accurate, thereby guarantee that processing steam passage is consistent, therefore, the difficult point of processing is to guarantee the requirement of other fitting surface as steam passage how for location.
Summary of the invention
The present invention is for solving in the process of existing Gas Turbine Power turbine guide vane sheet location, exist steam passage and steam passage circular arc assembling and positioning inconsistent, can not guarantee that blade root and leaf eject drop and the steam passage circular arc of vapour side plane accurate, and injure the problem of steam passage, and then a kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method is provided.
The present invention addresses the above problem the technical scheme of taking to be: a kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method of the present invention is to carry out according to following steps:
Step 1, utilize measurer on the blade root face of Gas Turbine Power turbine guide vane sheet blank, to look for four points, and measure the size between good these four points, and the drop of these four relatively same datum levels of point;
The surplus size of the steam output side circular arc of step 2, measurement Gas Turbine Power turbine guide vane sheet blank, and perform record;
Step 3, Gas Turbine Power turbine guide vane sheet blank are put on clamping and positioning device, with clearance gauge, measure six anchor points that the first positioning seat, the second positioning seat, the 3rd positioning seat, the 4th positioning seat, the 5th positioning seat and the 6th positioning seat are corresponding, guarantee contact≤0.03mm;
Step 4, on Digit Control Machine Tool with dial gauge and the drop centering of numerical control Z axis coordinate readings to four points in step 1, and four assistance for lifting adjusting supporting devices are regulated to location, when four hold down gags compress Gas Turbine Power turbine guide vane sheet blank, Gas Turbine Power turbine guide vane sheet blank is all raised to 0.2mm-0.4mm;
Step 5, add man-hour, according to the peak in four points looking on the blade root face of the Gas Turbine Power turbine guide vane sheet blank in step 1, the initial point of centering Tool in Cutting, process the position at this peak place, again according to the drop of centering in step 4, process other position, 3 places, till reaching the size and drop of designing requirement;
Step 6, big or small according to the surplus of the Gas Turbine Power turbine guide vane sheet blank steam output side circular arc of step 2 measurement, processing meets the circular arc of measurer, guarantees that circular arc and measurer coincide, and Gas Turbine Power turbine guide vane sheet blank is located and is machined.
Originally the invention has the beneficial effects as follows: the invention has the beneficial effects as follows: processing datum is consistent with steam passage circular arc in order to guarantee the steam passage of cast, and therefore, particularly important for the processing of this operation, it directly has influence on position degree and the geometric accuracy of postorder.Utilize positioning and processing method of the present invention, can guarantee the specification requirement that steam passage is consistent with steam passage circular arc after processing, position degree and geometric accuracy effectively improve, and make the specification requirement that meets the rear steam passage of assembling and steam passage circular arc meet the specification requirement of assembling.Accurate positioning, compress reliable, convenient and swift, processing is stable, and does not injure steam passage.Raise the efficiency, reduce costs.
One, according to principle of six-point fixing, manufacture six point location positioners, guaranteed accurate positioning.
Two, 3 of the location of steam passage plane are some contact steam passages, because the pressure of hold down gag is easy to cause impression, therefore, on the clamp body of guide vane blank plane that is positioned at leading edge, four assistance for lifting adjusting supporting devices have been installed; Intensity for fear of impression and support point, increase assistance for lifting and regulate supporting and location, the face of thick benchmark is supported in the conversion that four assistance for lifting adjusting supporting devices location can be used as three-point fix, it positions conversion according to different guide vane black skins, avoids the point of three-point fix because the reason of pressure injures steam passage.
Three, four hold down gags have guaranteed that the processing of guide vane blank is stable and reliable, in order to guarantee normal cutting, increase pressing plate, on clamp body in order to fix workpiece, must ensure pressing plates workpiece, but pressing plate will meet assistance for lifting regulates the position of supporting, avoid pressing partially and weigh wounded workpiece.
Four, the present invention has innovated positioning and processing method, steam passage does not leave impression, has guaranteed that blade root and leaf eject drop and the steam passage circular arc of vapour side plane accurate simultaneously, thereby guarantees that processing steam passage is consistent, raise the efficiency, reduce costs, during original clamping processing work, to size, just do not measure again, then centering again after clamping workpiece, reprocessing, repeated multiple times, efficiency is very low, and steam passage is also prone to impression.After the innovation of this processing method, once just can process two planar dimensions and circular arc, guarantee that size, drop, steam passage arc surface all complete, efficiency improves original three times, has reduced cost.The innovative and functional technique of the method is pressed stator precision pouring blade in power turbine combustion.
Accompanying drawing explanation
Fig. 1 is Gas Turbine Power turbine guide vane sheet blank in-process measurement view, Fig. 2 is the perspective view that clamping and positioning device that the present invention combines is provided with Gas Turbine Power turbine guide vane sheet blank, Fig. 3 is the overall structure top view of the clamping and positioning device that combines of the present invention, Fig. 4 is the A-A profile of Fig. 3, Fig. 5 is the B-B profile of Fig. 1, and Fig. 6 utilizes clamping device that the main TV structure schematic diagram of Gas Turbine Power turbine guide vane sheet blank is installed.
The specific embodiment
The specific embodiment one: in conjunction with Fig. 1-Fig. 6 explanation, a kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method of present embodiment carries out according to following steps:
Step 1, utilize measurer to look for four points 30 on the blade root face of Gas Turbine Power turbine guide vane sheet blank 9, and measure the size between good these four points, and the drop of these four relatively same datum levels of point;
The surplus size of the steam output side circular arc of step 2, measurement Gas Turbine Power turbine guide vane sheet blank 9, and perform record;
Step 3, Gas Turbine Power turbine guide vane sheet blank 9 are put on clamping and positioning device, with clearance gauge, measure six anchor points of the first positioning seat 12, the second positioning seat 13, the 3rd positioning seat 14, the 4th positioning seat 15, the 5th positioning seat 16 and the 6th positioning seat 17 correspondences, guarantee contact≤0.03mm;
Step 4, on Digit Control Machine Tool with dial gauge and the drop centering of numerical control Z axis coordinate readings to four points in step 1, and four assistance for lifting adjusting supporting devices 8 are regulated to location, when four hold down gags 4 compress Gas Turbine Power turbine guide vane sheet blank 9, Gas Turbine Power turbine guide vane sheet blank 9 is all raised to 0.2mm-0.4mm;
Step 5, add man-hour, according to the peak in four points looking on the blade root face of the Gas Turbine Power turbine guide vane sheet blank 9 in step 1, the initial point of centering Tool in Cutting, process the position at this peak place, again according to the drop of centering in step 4, process other position, 3 places, till the size that reaches designing requirement and drop (the same with art work sheet physical dimension);
Step 6, big or small according to the surplus of the Gas Turbine Power turbine guide vane sheet blank 9 steam output side circular arcs of step 2 measurement, processing meets the circular arc of measurer, guarantees that circular arc and measurer coincide, and Gas Turbine Power turbine guide vane sheet blank is located and is machined.
In the step 2 of present embodiment, measuring the surplus size of the steam output side circular arc of Gas Turbine Power turbine guide vane sheet blank, is accurate when guaranteeing that work in-process is removed surplus.
In the step 3 of present embodiment, guaranteeing contact≤0.03mm, is to fit on location in order to guarantee.
It is feasible in order to guarantee to change that four assistance for lifting adjusting supporting devices in the step 4 of present embodiment regulate location, Gas Turbine Power turbine guide vane sheet blank is raised to 0.2mm-0.4mm, be to be convenient in adjustment process, prevent that steam passage from contacting former anchor point.Four points that are equivalent in step 1 of raising of step 4 are raised 0.2mm-0.4mm; The Digit Control Machine Tool of present embodiment adopts X5036 vertical type numerically controlled machine.Described drop centering is on measurer, to record and coincide in order to find with Gas Turbine guide vane blank;
The position that processes four some places in the step 5 of present embodiment comprises arc surface and the plane between the face at this place and the same side at 2.It is the same with technological design drawing physical dimension that the size that reaches designing requirement and the drop of present embodiment refers to.
The circular arc that in present embodiment step 6, processing meets measurer refers to the circular arc that meets art work sheet physical dimension, within guaranteeing that circular arc and measurer coincide and refer to that circular arc after processing and gage measuring meet specification requirement tolerance;
The processing Gas Turbine Power turbine guide vane sheet datum level that present embodiment combines comprises clamp body 1, the first winding device 2, the second winding device 3, four assistance for lifting adjusting supporting devices 8, four hold down gags 4, three setting circle pins 5, three location cuphead pilotages 6 and six positioning seats with clamping and positioning device;
Six positioning seats comprise the first positioning seat 12, the second positioning seat 13, the 3rd positioning seat 14, the 4th positioning seat 15, the 5th positioning seat 16 and the 6th positioning seat 17, the first positioning seat 12, the second positioning seat 13, the 3rd positioning seat 14, the 4th positioning seat 15, the 5th positioning seat 16 and the 6th positioning seat 17 are arranged on the upper surface of clamp body 1 according to six reference point location correspondences of Gas Turbine Power turbine guide vane sheet blank 9 processing, the first positioning seat 12, on the second positioning seat 13 and the 3rd positioning seat 14, be separately installed with a setting circle pin 5, the 4th positioning seat 15, on the 5th positioning seat 16 and the 6th positioning seat 17, be separately installed with a location cuphead pilotage 6, three setting circle pins 5 and 6 pairs of Gas Turbine guide vane blanks of three location cuphead pilotages carry out six point locations,
The first winding device 2, the second winding device 3, four hold down gags 4 and four assistance for lifting adjusting supporting devices 8 are arranged on the upper surface of clamp body 1, the admission side 10 that 4 pairs of 10, four hold down gags of admission side of the blade root of four assistance for lifting adjusting supporting device 8 support gas turbine guide vane blanks 9 are arranged in the blade root of four Gas Turbine guide vane blanks 9 on assistance for lifting adjusting supporting device 8 compresses;
The first winding device 2 screws the steam passage arc surface of location Gas Turbine guide vane blank 9, and the second winding device 3 screws the blade root of location Gas Turbine guide vane blank 9.
Shown in Fig. 1, Gas Turbine guide vane blanking blade 9 (workpiece) is placed on measurer body 22 accurately with six point locations of steam passage, and screw the first winding device 2 and the second winding device 3 and guarantee that guide vanes are stable, at steam output side blade root integral shroud, look for four points and finish position afterwards, with height gauge 19, measure black skin, record respectively the surplus of each processing.
Shown in Fig. 2, after Gas Turbine guide vane blanking blade 9 (workpiece) is placed into the some laminating of six of location, before and after regulating subsequently, totally four assistance for lifting adjusting supporting devices 8 (can guarantee that like this first positioning seat 12, the second positioning seat 13 and the 3rd positioning seat 14 are transformed on the black skin of both sides, injure steam passage while avoiding the compression with pressing plate) on the steam admission side blade root of workpiece, integral shroud both sides black skin.With dial gauge, on Digit Control Machine Tool, look for the record with original measurement, guarantee that the physical dimension of processing and the drop of two machined surfaces are consistent with measurer requirement.Afterwards, then place the iron sheet that 0.3mm is thick on the first positioning seat 12, the second positioning seat 13 and the 3rd positioning seat 14, then adjust and raise four assistance for lifting adjusting supporting device laminatings, compress four pressing plates, guarantee that workpiece adds man-hour solid and reliable.Sometimes for process guarantees the stable of working position, can add two auxiliary support frames 7 temporarily and guarantee, one of them auxiliary support frame 7 supports blade root steam output side position 18, and another auxiliary support frame 7 supports steam output side integral shroud position 20.These grip device six point locations of the present invention have guaranteed the drop requirement of physical dimension and two faces, utilize the conversion of four assistance for lifting adjusting supporting devices assurance benchmark simultaneously, have avoided injuring the key position steam passage position of workpiece.
Shown in Fig. 6, Gas Turbine guide vane blanking blade 9 (workpiece) is placed on six anchor points of clamping and positioning device, utilize workpiece deadweight to guarantee the first positioning seat 12, the second positioning seat 13 and the 3rd positioning seat 14 laminatings, with the first winding device 2, guarantee the 4th positioning seat 15 laminatings, with the second winding device 3, guarantee the 5th positioning seat 16 and the 6th positioning seat 17 laminatings.
The specific embodiment two: in conjunction with Fig. 2 and Fig. 3 explanation, in the step 4 of present embodiment, Gas Turbine Power turbine guide vane sheet blank is raised to 0.3mm.So arrange, while clamping guide vane in guaranteeing to process, can not hurt the steam passage position of guide vane, protection steam passage, facts have proved that 0.3mm thickness is just in time enough.Other is identical with the specific embodiment one.
The course of work
The present invention is for Gas Turbine Power turbine precision pouring guide vane, on the main drop face of looking for circular arc surplus by gage measuring on Gas Turbine guide vane black skin, look for four points, on Digit Control Machine Tool, with dial gauge, pass through the position accurately of four some centerings and measurer, adjust assistance for lifting adjusting supporting device and carry out the conversion of benchmark, while having avoided compressing blank workpiece, the reason of thrust leaves impression to steam passage, according to the actual size value of the drop of four points and measurer, process, guarantee that drop and circular arc just can just can process the workpiece that meets process specification requirement by clamped one time.
Claims (2)
1. a Gas Turbine Power turbine guide vane sheet datum level positioning and processing method, is characterized in that: described positioning and processing method carries out according to following steps:
Step 1, utilize measurer on the blade root face of Gas Turbine Power turbine guide vane sheet blank (9), to look for four points (30), and measure the size between good these four points, and the drop of these four relatively same datum levels of point;
The surplus size of the steam output side circular arc of step 2, measurement Gas Turbine Power turbine guide vane sheet blank (9), and perform record;
Step 3, Gas Turbine Power turbine guide vane sheet blank (9) are put on clamping and positioning device, with clearance gauge, measure six anchor points that the first positioning seat 12, the second positioning seat (13), the 3rd positioning seat (14), the 4th positioning seat (15), the 5th positioning seat (16) and the 6th positioning seat (17) are corresponding, guarantee contact≤0.03mm;
Step 4, on Digit Control Machine Tool with dial gauge and the drop centering of numerical control Z axis coordinate readings to four points in step 1, and four assistance for lifting adjusting supporting devices (8) are regulated to location, when four hold down gags (4) compress Gas Turbine Power turbine guide vane sheet blank (9), Gas Turbine Power turbine guide vane sheet blank (9) is all raised to 0.2-0.4mm;
Step 5, add man-hour, according to the peak in four points looking on the blade root face of the Gas Turbine Power turbine guide vane sheet blank (9) in step 1, the initial point of centering Tool in Cutting, process the position at this peak place, again according to the drop of centering in step 4, process other position, 3 places, till reaching the size and drop of designing requirement;
Step 6, big or small according to the surplus of Gas Turbine Power turbine guide vane sheet blank (9) the steam output side circular arc of step 2 measurement, processing meets the circular arc of measurer, guarantee that circular arc and measurer coincide, Gas Turbine Power turbine guide vane sheet blank (9) location machines.
2. a kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method according to claim 1, is characterized in that: in step 4, Gas Turbine Power turbine guide vane sheet blank (9) is raised to 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384414.9A CN104191314B (en) | 2014-08-06 | 2014-08-06 | A kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384414.9A CN104191314B (en) | 2014-08-06 | 2014-08-06 | A kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method |
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| Publication Number | Publication Date |
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| CN104191314A true CN104191314A (en) | 2014-12-10 |
| CN104191314B CN104191314B (en) | 2016-06-15 |
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| CN201410384414.9A Active CN104191314B (en) | 2014-08-06 | 2014-08-06 | A kind of Gas Turbine Power turbine guide vane sheet datum level positioning and processing method |
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Cited By (3)
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| CN109108684A (en) * | 2018-08-27 | 2019-01-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of tooling for pressing the special guide vane of steam turbine for processing combustion |
| CN110116337A (en) * | 2019-05-27 | 2019-08-13 | 宁波日星铸业有限公司 | The residue check of Large blower pedestal blank and scribing tooling and its application method |
| CN111981941A (en) * | 2020-08-18 | 2020-11-24 | 东风汽车股份有限公司 | Device and method for detecting space precision of radiator fixing support |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109108684A (en) * | 2018-08-27 | 2019-01-01 | 哈尔滨汽轮机厂有限责任公司 | A kind of tooling for pressing the special guide vane of steam turbine for processing combustion |
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| CN104191314B (en) | 2016-06-15 |
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Effective date of registration: 20221227 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. |