CN106799512A - A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile - Google Patents

A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile Download PDF

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Publication number
CN106799512A
CN106799512A CN201710103558.6A CN201710103558A CN106799512A CN 106799512 A CN106799512 A CN 106799512A CN 201710103558 A CN201710103558 A CN 201710103558A CN 106799512 A CN106799512 A CN 106799512A
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CN
China
Prior art keywords
milling cutter
flute profile
groove
rotor
shaped
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
Application number
CN201710103558.6A
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Chinese (zh)
Inventor
刘剑
孙盛丽
魏成双
胡迪
胡卫杰
李辉
尹若枫
赵祎昕
武申萍
吕岩峰
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Harbin Turbine Co Ltd
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Harbin Turbine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Harbin Turbine Co Ltd filed Critical Harbin Turbine Co Ltd
Priority to CN201710103558.6A priority Critical patent/CN106799512A/en
Publication of CN106799512A publication Critical patent/CN106799512A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/28Grooving workpieces
    • B23C3/34Milling grooves of other forms, e.g. circumferential

Abstract

A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile, it is related to the manufacture field of turbo rotor groove., in order to solve the processing of existing turbo rotor groove using high-speed steel milling cutter, the rotating speed that there is milling cutter is relatively low with the amount of feeding, causes the processing efficiency of turbo rotor groove low, and cutter life is short, tool change time problem long for the present invention.The present invention is comprised the following steps:The clamping of step one, rotor;Step 2, the datum mark for finding processing;Step 3, the first flute profile for rough milling rotor;Step 4, the first flute profile of detection;Second flute profile of step 5, half finish-milling rotor;Step 6, the second flute profile of detection;The groove-shaped of step 7, finish-milling rotor;Step 8, detection groove-shaped.Milling cutter of the invention is whole hard alloy wheel groove milling cutter, and rotating speed and the amount of feeding of whole hard alloy wheel groove milling cutter increase, and are effectively improved processing efficiency.Processing of the present invention for turbo rotor groove.

Description

A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile
Technical field
The present invention relates to a kind of method of use milling cutter processing rotor race, and in particular to one kind is added using hard alloy cutter The method of work turbine rotor molded line flute profile.
Background technology
The processing of turbo rotor groove is the mostly important ring of turbine making industry, and turbine rotor is gyroscope wheel Wide structure, the race processed on rotor is special flute profile, and flute profile is uniformly distributed on rotor, and the flute profile can not time processing Complete, it is necessary to be processed could be shaped one by one with three milling cutters, three are respectively roughing milling cutter, half milling cutter and milling cutter, three milling cutter Milling cutter is served as in milling different tasks.The processing of existing turbo rotor groove uses high-speed steel milling cutter, exists The rotating speed of milling cutter is relatively low with the amount of feeding, causes the processing efficiency of turbo rotor groove low, and cutter life is short, tool change time Problem long.And then a kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile is provided.
The content of the invention
The invention aims to solve the processing of existing turbo rotor groove using high-speed steel milling cutter, there is milling The rotating speed of knife is relatively low with the amount of feeding, causes the processing efficiency of turbo rotor groove low, and cutter life is short, and tool change time is long Problem.And then a kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile is provided.
The technical scheme is that:
A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile, methods described includes following step Suddenly:
The clamping of step one, rotor:
By cylindrical rotor clamping of the bounce less than 0.012mm on lathe;
Step 2, the datum mark for finding processing:
By milling cutter clamping on lathe chuck, make milling cutter end face that gapless is contacted with rotor outer circle, now on lathe The coordinate points of display are used as the datum mark for processing flute profile;
Step 3, the first flute profile for rough milling rotor:
Milling cutter is removed, by roughing milling cutter clamping on lathe chuck, roughing milling cutter processes the first flute profile, the cutting of roughing milling cutter Parameter is:Rotating speed 550r/min~600r/min, amount of feeding 55mm/min~60mm/min;
Step 4, the first flute profile of detection:
When roughing milling cutter is machined during rotor one is enclosed after last first flute profile, roughing milling cutter is removed, taper is detected Rod clamping on lathe chuck, first the first flute profile of roughing milling cutter processing on taper test bar alignment rotor, when taper detection When the taper of rod is cylindrical inconsistent with first upper and lower gap of the first flute profile of roughing milling cutter processing, machine tooling rotor groove is illustrated Skewness, then need to adjust lathe indexing system, until the first of the cylindrical processing with roughing milling cutter of the taper of taper test bar Untill the individual upper and lower gap of first flute profile is consistent;If cylindrical first the first groove with roughing milling cutter processing of the taper of taper test bar The upper and lower gap of shape is consistent, then the indexing system of lathe is without adjustment;
Second flute profile of step 5, half finish-milling rotor:
Roughing milling cutter is removed, by half milling cutter clamping on lathe chuck, half milling cutter processes the second flute profile on rotor, The cutting parameter of half milling cutter is:Rotating speed 610r/min~620r/min, amount of feeding 64mm/min~65mm/min;
Step 6, the second flute profile of detection:
The second flute profile is detected using taper test bar, detection process is consistent with step 4;
The groove-shaped of step 7, finish-milling rotor:
Half milling cutter is removed, by milling cutter clamping on lathe chuck, milling cutter processes groove-shaped on rotor, essence The cutting parameter of milling cutter is:Rotating speed 600r/min~620r/min, amount of feeding 63mm/min~65mm/min;
Step 8, detection groove-shaped:
It is whether accurate with detection sample post detection groove-shaped after milling cutter machines groove-shaped, such as detection sample post with Groove-shaped is matched completely, then the processing dimension of groove-shaped is qualified, if detection sample post is not matched completely with groove-shaped, is counted The gap between detection sample post and groove-shaped is calculated, then proceedes to process groove-shaped, until detection sample post is complete with groove-shaped Full matching, so far, completes the processing to molded line flute profile.
Further, the cutting parameter of the roughing milling cutter in step 3 is:Rotating speed 575r/min, amount of feeding 57.5mm/min.
Further, the cutting parameter of half milling cutter in step 5 is:Rotating speed 615r/min, amount of feeding 64.5mm/ min。
Further, the cutting parameter of the milling cutter in step 7 is:Rotating speed 610r/min, amount of feeding 64mm/min.
Further, roughing milling cutter, half milling cutter and milling cutter are whole hard alloy wheel groove milling cutter.
Further, taper is surveyed between check bar and the second flute profile and is provided with gap.
Further, the first flute profile is taper flute profile.
Further, groove-shaped is the last profile of rotor groove processing.
Further, the profile of the second flute profile 0.30mm smaller than the profile of groove-shaped.
The present invention has the following effects that compared with prior art:
1st, roughing milling cutter of the invention, half milling cutter and milling cutter 3 are whole hard alloy wheel groove milling cutter, and overall hard is closed Compared with traditional high-speed steel roughing milling cutter, rotating speed and the amount of feeding all increase golden roughing milling cutter, processing efficiency improve 20% with On, tool bit life more than 1 times.
2nd, compared with traditional milling cutter of high-speed steel half, rotating speed and the amount of feeding are all substantially carried the milling cutter of whole hard alloy half Height, and saved tool change time, processing efficiency improves more than 50%, more than 2 times of tool bit life.
3rd, compared with traditional high-speed steel milling cutter, rotating speed and the amount of feeding are all significantly improved whole hard alloy milling cutter 3, And save tool change time, processing efficiency improves more than 70%, more than 3 times of tool bit life.
4 compared with the processing of traditional turbo rotor groove, and the present invention detects the first groove using taper test bar 4 Shape 6-4 and the second flute profile 6-3, is detected using 4 pairs of processing races of taper test bar, ensure that race is uniform on rotor Distribution.
Brief description of the drawings
Fig. 1 is the structural representation of rotor groove;
Fig. 2 is structural representation of the milling cutter 3 to knife;
Fig. 3 is the structural representation that roughing milling cutter processes the first flute profile 6-2;
Fig. 4 is the structural representation that half milling cutter processes the second flute profile 6-3;
Fig. 5 is schematic enlarged-scale views of the Fig. 4 at A;
Fig. 6 is the structural representation that milling cutter 3 processes groove-shaped 6-4;
Fig. 7 is the structural representation that taper check bar detection rotor groove indexes situation;
Fig. 8 is schematic enlarged-scale views of the Fig. 7 at B;
Fig. 9 is to detect that sample post 5 detects the structural representation of groove-shaped 6-4.
Specific embodiment
Specific embodiment one:Present embodiment is illustrated with reference to Fig. 1 to Fig. 9, a kind of of present embodiment is closed using hard The method of golden tool sharpening turbine rotor molded line flute profile, the described method comprises the following steps:
The clamping of step one, rotor 6:
By cylindrical rotor 6 clamping of the bounce less than 0.012mm on lathe;
Step 2, the datum mark for finding processing:
By the clamping of milling cutter 3 on lathe chuck 7, milling cutter end face 3-1 is set to contact gapless with rotor outer circle 6-1, this When lathe on show coordinate points as processing flute profile datum mark;
Step 3, the first flute profile 6-2 for rough milling rotor 6:
Milling cutter 3 is removed, by roughing milling cutter clamping on lathe chuck 7, roughing milling cutter processes the first flute profile 6-2, roughing milling cutter Cutting parameter be:Rotating speed 550r/min~600r/min, amount of feeding 55mm/min~60mm/min;
Step 4, the first flute profile 6-2 of detection:
When roughing milling cutter is machined during rotor 6 one is enclosed after last first flute profile 6-2, roughing milling cutter is removed, by taper The clamping of test bar 4 on lathe chuck 7, first the first flute profile 6-2 of roughing milling cutter processing on the alignment rotor 6 of taper test bar 4, When the taper of taper test bar 4 is cylindrical inconsistent with first the first upper and lower gap of flute profile 6-2 of roughing milling cutter processing, machine is illustrated Bed the race skewness of processing rotor 6, then need adjust lathe indexing system, until the taper of taper test bar 4 it is cylindrical with Untill first the first upper and lower gap of flute profile 6-2 of roughing milling cutter processing is consistent;If the taper of taper test bar 4 it is cylindrical with rough mill First the first upper and lower gap of flute profile 6-2 of knife processing is consistent, then the indexing system of lathe is without adjustment;
Second flute profile 6-3 of step 5, half finish-milling rotor 6:
Roughing milling cutter is removed, by half milling cutter clamping on lathe chuck 7, half milling cutter processes the second groove on rotor 6 Shape 6-3, the cutting parameter of half milling cutter is:Rotating speed 610r/min~620r/min, amount of feeding 64mm/min~65mm/min;
Step 6, the second flute profile 6-3 of detection:
The second flute profile 6-3 is detected using taper test bar 4, detection process is consistent with step 4;
The groove-shaped 6-4 of step 7, finish-milling rotor 6:
Half milling cutter is removed, by the clamping of milling cutter 3 on lathe chuck 7, milling cutter 3 processes the 3rd groove on rotor 6 Shape 6-4, the cutting parameter of milling cutter 3 is:Rotating speed 600r/min~620r/min, amount of feeding 63mm/min~65mm/min;
Step 8, detection groove-shaped 6-4:
Detect whether groove-shaped 6-4 is accurate, such as examines with detection sample post 5 after milling cutter 3 machines groove-shaped 6-4 Test sample post 5 is matched completely with groove-shaped 6-4, then the processing dimension of groove-shaped 6-4 is qualified, if detection sample post 5 and the 3rd Flute profile 6-4 is not matched completely, calculates the gap between detection sample post 5 and groove-shaped 6-4, then proceedes to processing groove-shaped 6- 4, until detection sample post 5 is matched completely with groove-shaped 6-4, so far, complete the processing to molded line flute profile.
Specific embodiment two:Illustrate present embodiment with reference to Fig. 3, the step of present embodiment three in roughing milling cutter cut Cutting parameter is:Rotating speed 575r/min, amount of feeding 57.5mm/min.It is arranged such, roughing milling cutter is solid cemented carbide milling cutter, is rough milled Knife smoothly processes the first flute profile 6-2, and compared with high-speed steel milling cutter, rotating speed and the amount of feeding have all been carried solid cemented carbide milling cutter Height, processing efficiency improves more than 20%, 1 times of tool bit life.Other compositions and annexation and specific embodiment one It is identical.
Specific embodiment three:Half essence in the step of illustrating present embodiment, present embodiment with reference to Fig. 4 and Fig. 5 five The cutting parameter of milling cutter is:Rotating speed 615r/min, amount of feeding 64.5mm/min.It is arranged such, half milling cutter is that overall hard is closed Golden milling cutter, half milling cutter processes the second flute profile 6-3, solid cemented carbide milling cutter compared with high-speed steel milling cutter, rotating speed with feeding Amount is all significantly improved, and has saved tool change time, and processing efficiency improves more than 50%, more than 2 times of tool bit life.Its It constitutes identical with specific embodiment one or two with annexation.
Specific embodiment four:In the step of present embodiment, present embodiment being illustrated with reference to Fig. 1 to Fig. 3 and Fig. 5 seven The cutting parameter of milling cutter 3 is:Rotating speed 610r/min, amount of feeding 64mm/min.It is arranged such, milling cutter 3 is that overall hard is closed Golden milling cutter, milling cutter 3 smoothly processes groove-shaped 6-4, solid cemented carbide milling cutter compared with high-speed steel milling cutter, rotating speed with enter All significantly improved to amount, and saved tool change time, processing efficiency improves more than 70%, 3 times of tool bit life.Other Composition and annexation are identical with specific embodiment one, two or three.
Specific embodiment five:Present embodiment, the roughing milling cutter of present embodiment, half milling cutter and essence are illustrated with reference to Fig. 2 Milling cutter 3 is whole hard alloy wheel groove milling cutter.It is arranged such, is effectively improved the rotating speed and the amount of feeding of cutter, and save Tool change time, processing efficiency improves more than 20%, cutter life more than 1 times.Other composition and annexation with it is specific Implementation method one, two, three or four are identical.
Specific embodiment six:Present embodiment is illustrated with reference to Fig. 4, Fig. 7 and Fig. 8, the taper of present embodiment surveys check bar 4 Gap 6-5 is provided between the second flute profile 6-3.Other compositions and annexation and specific embodiment one, two, three, four or five It is identical.
Specific embodiment seven:Present embodiment is illustrated with reference to Fig. 3, the first flute profile 6-2 of present embodiment is taper groove Shape.It is arranged such, taper flute profile is conducive to half milling cutter that the second flute profile 6-3 is processed on rotor 6.Other compositions and connection are closed System is identical with specific embodiment one, two, three, four, five or six.
Specific embodiment eight:Present embodiment, the groove-shaped 6-4 of present embodiment are illustrated with reference to Fig. 1 Fig. 6 and Fig. 9 It is the last profile of rotor groove processing.It is arranged such, disclosure satisfy that the processing request of the race of rotor 6.Other compositions and connection Relation is identical with specific embodiment one, two, three, four, five or six.
Specific embodiment nine:Present embodiment, the profile ratio of the second flute profile 6-3 of present embodiment are illustrated with reference to Fig. 5 The small 0.30mm of profile of groove-shaped 6-4.It is arranged such, the second flute profile 6-3 provides allowance for groove-shaped 6-4.Other Composition and annexation are identical with specific embodiment one, two, three, four, five or six.

Claims (9)

1. a kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile, it is characterised in that:Methods described bag Include following steps:
The clamping of step one, rotor (6):
By cylindrical rotor (6) clamping of bounce less than 0.012mm on lathe;
Step 2, the datum mark for finding processing:
By milling cutter (3) clamping on lathe chuck (7), milling cutter end face (3-1) is set to be contacted continuously with rotor outer circle (6-1) Gap, the coordinate points for now being shown on lathe are used as the datum mark for processing flute profile;
Step 3, the first flute profile (6-2) for rough milling rotor (6):
Milling cutter (3) is removed, by roughing milling cutter clamping on lathe chuck (7), roughing milling cutter processes the first flute profile (6-2), rough mills The cutting parameter of knife is:Rotating speed 550r/min~600r/min, amount of feeding 55mm/min~60mm/min;
Step 4, the first flute profile of detection (6-2):
When roughing milling cutter is machined during rotor (6) is enclosed after last first flute profile (6-2), roughing milling cutter is removed, by taper To on lathe chuck (7), taper test bar (4) is directed at first first of roughing milling cutter processing on rotor (6) to test bar (4) clamping Flute profile (6-2), when the taper of taper test bar (4) is cylindrical and the upper and lower gap of first the first flute profile (6-2) of roughing milling cutter processing When inconsistent, machine tooling rotor (6) race skewness is illustrated, then need to adjust lathe indexing system, until taper is examined Survey the cylindrical processing with roughing milling cutter of taper of rod (4) the upper and lower gap of first the first flute profile (6-2) it is consistent untill;If taper is examined The taper for surveying rod (4) is cylindrical consistent with roughing milling cutter the is processed upper and lower gap of first the first flute profile (6-2), then the indexing system of lathe System is without adjustment;
Second flute profile (6-3) of step 5, half finish-milling rotor (6):
Roughing milling cutter is removed, by half milling cutter clamping on lathe chuck (7), half milling cutter processes the second groove on rotor (6) Shape (6-3), the cutting parameter of half milling cutter is:Rotating speed 610r/min~620r/min, amount of feeding 64mm/min~65mm/min;
Step 6, the second flute profile of detection (6-3):
The second flute profile (6-3) is detected using taper test bar (4), detection process is consistent with step 4;
The groove-shaped (6-4) of step 7, finish-milling rotor (6):
Half milling cutter is removed, by milling cutter (3) clamping on lathe chuck (7), milling cutter (3) processes on rotor (6) Groove-shaped (6-4), the cutting parameter of milling cutter (3) is:Rotating speed 600r/min~620r/min, amount of feeding 63mm/min~ 65mm/min;
Step 8, detection groove-shaped (6-4):
Detect whether groove-shaped (6-4) is accurate with detection sample post (5) after milling cutter (3) machines groove-shaped (6-4), Such as detect that sample post (5) is matched completely with groove-shaped (6-4), then the processing dimension of groove-shaped (6-4) is qualified, if detection sample Post (5) is not matched completely with groove-shaped (6-4), calculates the gap between detection sample post (5) and groove-shaped (6-4), then Continue to process groove-shaped (6-4), until detection sample post (5) is matched completely with groove-shaped (6-4), so far, complete to molded line The processing of flute profile.
2. the method that a kind of utilization hard alloy cutter according to claim 1 processes turbine rotor molded line flute profile, its It is characterised by:The cutting parameter of the roughing milling cutter in step 3 is:Rotating speed 575r/min, amount of feeding 57.5mm/min.
3. the method that a kind of utilization hard alloy cutter according to claim 2 processes turbine rotor molded line flute profile, its It is characterised by:The cutting parameter of half milling cutter in step 5 is:Rotating speed 615r/min, amount of feeding 64.5mm/min.
4. the method that a kind of utilization hard alloy cutter according to claim 3 processes turbine rotor molded line flute profile, its It is characterised by:The cutting parameter of the milling cutter (3) in step 7 is:Rotating speed 610r/min, amount of feeding 64mm/min.
5. the method that a kind of utilization hard alloy cutter according to claim 4 processes turbine rotor molded line flute profile, its It is characterised by:Roughing milling cutter, half milling cutter and milling cutter (3) are whole hard alloy wheel groove milling cutter.
6. the method that a kind of utilization hard alloy cutter according to claim 1 processes turbine rotor molded line flute profile, its It is characterised by:Taper is surveyed between check bar (4) and the second flute profile (6-3) and is provided with gap (6-5).
7. the method that a kind of utilization hard alloy cutter according to claim 1 processes turbine rotor molded line flute profile, its It is characterised by:First flute profile (6-2) is taper flute profile.
8. the method that a kind of utilization hard alloy cutter according to claim 1 processes turbine rotor molded line flute profile, its It is characterised by:Groove-shaped (6-4) is the last profile of rotor groove processing.
9. the method that a kind of utilization hard alloy cutter according to claim 1 processes turbine rotor molded line flute profile, its It is characterised by:Profile small 0.30mm of the profile of the second flute profile (6-3) than groove-shaped (6-4).
CN201710103558.6A 2017-02-24 2017-02-24 A kind of method that utilization hard alloy cutter processes turbine rotor molded line flute profile Pending CN106799512A (en)

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