CN106514143A - Special machining method for large runner shaft coupling holes - Google Patents

Special machining method for large runner shaft coupling holes Download PDF

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Publication number
CN106514143A
CN106514143A CN201610982743.2A CN201610982743A CN106514143A CN 106514143 A CN106514143 A CN 106514143A CN 201610982743 A CN201610982743 A CN 201610982743A CN 106514143 A CN106514143 A CN 106514143A
Authority
CN
China
Prior art keywords
equipment
runner
coupling hole
main shaft
machining
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
CN201610982743.2A
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Chinese (zh)
Inventor
黄海玉
葛军
霍金平
杨宏伟
杨思晋
李鑫
刘向海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin Electric Machinery Co Ltd
Original Assignee
Harbin Electric Machinery 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 Electric Machinery Co Ltd filed Critical Harbin Electric Machinery Co Ltd
Priority to CN201610982743.2A priority Critical patent/CN106514143A/en
Publication of CN106514143A publication Critical patent/CN106514143A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/006Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine wheels

Abstract

The invention discloses a special machining method for large runner shaft coupling holes. A runner crown flange is upwards placed on an accordant square box, and a boring die and a runner are concentrically installed and fixed; a machining device is located on the boring die, and a movable vertical digital control boring-milling machine with a three-axis linkage function is adopted as the device; after a main shaft of the device is adjusted to be perpendicularly fixed to the boring die, the rotating center of the main shaft of the device is found to coincide with the center of an alignment hole of a runner shaft coupling hole in the boring die; a drill bit is used for drilling and expanding the runner shaft coupling hole until a certain machining margin is reserved; the drill bit is demounted, a cylindrical bar milling cutter is used for machining the shaft coupling hole to required sizes in a three-axis linkage manner; machining of the shaft coupling hole within the stroke range of the main shaft is finished, a pushing and pulling adjusting device is used for finishing the indexing movement of the device relative to the shaft coupling hole, the above adjusting, aligning and machining steps are repeated to finish machining of the shaft coupling hole within the stroke range of the main shaft after indexing; and the indexing movement, adjusting, aligning and machining steps are repeated multiple times until machining of all the runner shaft coupling holes is finished. The special machining method for the large runner shaft coupling holes has the beneficial effects of being high in machining efficiency, wide in application range, high in machining quality and the like.

Description

Large rotary wheel coupling hole special plane processing method
Technical field:
The invention discloses a kind of large rotary wheel coupling hole special plane processing method.
Background technology:
Runner is hydraulic turbine core component, and coupling hole is coupled with turbine shaft for runner, and circumference uniform distribution is located on runner On hat flange, the processing method of current coupling hole generally adopts revolving rocker arm formula apparatus processing, this processing method equipment and boring After mould is fixed, distance of the main-shaft axis away from roller centre only can be adjusted within the specific limits, when the distribution circle of coupling hole is beyond upper State adjusting range, it is impossible to which coupling hole is processed, range of application is little;As the coupling hole of large rotary wheel is relatively large in diameter, now plus The sizing tool sharpening runner coupling hole that work method is adopted cannot be completed;Due to large rotary wheel coupling hole pitch circle diameter compared with Greatly, in existing processing method, machine spindle is remote away from its support, and in causing the course of processing, vibration is big, and coupling hole crudy is poor.
The content of the invention:
It is an object of the invention to provide the high large rotary wheel shaft coupling of a kind of high in machining efficiency, applied range, crudy Hole special plane processing method.
The purpose of the present invention is to be achieved through the following technical solutions:
(1) processed using removable vertical numerical control boring and milling bed apparatus (1), its main shaft has X, Y, Z numerical control linkage function;
(2) runner (2) crown coupling hole flange is placed on contour square chest (3) upward, and boring template (4) adjusts same with runner (2) Both are fixed after the heart;
(3) treated that bore hole position is hung equipment and fallen on boring template (4) according to what is demarcated on boring template (4);
(4) adjusting device (1) main shaft is vertical with boring template (4) plane, be provided with by plane on boring template (4) with boring template (4) The concentric circumferential insertion T-slot of three circles in center is fixed with boring template (4) by equipment (1);
(5) repetition measurement equipment (1) main shaft it is vertical with boring template (4) plane it is qualified after, main shaft along X, Y direction move, to main shaft The alignment holes center superposition of runner coupling hole on center of rotation and boring template (4);
(6) equipment (1) installs drill bit, and main shaft rotation is bored, expands coupling hole, and preformed hole simultaneously along Z-direction to lower feeding Allowance for finish;
(7) drill bit on equipment (1) is pulled down, cylindrical bar milling cutter is installed, main shaft processes runner coupling hole extremely along X, Y, Z three-shaft linkage The size of requirement;
(8) cylindrical bar milling cutter on equipment (1) is pulled down, the main shaft of equipment (1) is moved along X, Y direction, to main shaft center of rotation With alignment holes center superposition on next runner coupling hole corresponding boring template (4) to be processed;
(9) repeat step (6), step (7) and complete next coupling hole in equipment (1) major axis X, Y-axis stroke range Processing;
(10) repeat the above steps (8), step (9) are until complete all runners in equipment (1) major axis X, Y-axis stroke range The processing of coupling hole;
(11) fixation of release apparatus (1) and boring template (4);Adjusted using the push rod adjusting apparatus (5) on equipment (1) and pull bar Engagement positions (6) drive equipment (1) to slide into shaft coupling bore region to be processed next beyond travel of spindle scope on boring template (4), complete The dividing movement of alignment holes on the relative boring template (4) of forming apparatus (1);
(12) repeat the above steps (4) are to step (10), to being located in equipment (1) major axis X, Y-axis stroke range after indexing All coupling holes be processed;
(13) repeat the above steps (11) are to step (12) until completing the processing of whole runner coupling holes.
The technique effect of the present invention has:
1st, the big portion of coupling hole is removed boring, expanding using the equipment with X, Y, Z numerical control linkage function in processing method After dividing allowance, desired size can be machined to using cylindrical bar milling cutter three-shaft linkage, the sizing cutter of middle employing than existing methods Processing coupling hole, not only production efficiency is high, and meets the big requirement of shaft coupling bore dia processing dimension;
2nd, due to the position of the relative boring template of device therefor in processing method, can be according to the different and corresponding of shaft coupling pore size distribution circle Change, only can be adjusted with respect to distance of the existing processing method machine spindle axis away from roller centre, within the specific limits using model Enclose wide;
3rd, dividing movement of the equipment with respect to alignment holes on boring template, is completed using push rod adjusting apparatus and pull bar adjusting apparatus, Indexing process need not be lifted, and save the equipment hoisting time;
4th, the shaft coupling hole machined to different distributions circular diameter, machine spindle axis is to immobilize away from its distance for supporting , become big away from its support distances with the increase of distribution circle with respect to existing processing method device therefor main shaft, with shaft coupling hole machined During rigidity good, the good feature of quality after processing;
5th, as process equipment is movable, more existing processing method device therefor is lightweight more than one times, to positioning boring Mould rigid requirements are low, and equipment is easy to adjust, motility is strong.
Description of the drawings:
Fig. 1 runner shaft coupling hole machined front views
Fig. 2 runner shaft coupling hole machined top views
Specific embodiment:
(1) processed using removable vertical numerical control boring and milling bed apparatus 1, its main shaft has X, Y, Z numerical control linkage function;
(2) 2 crown coupling hole flange of runner is placed on contour square chest 3 upward, boring template 4 and runner 2 adjust it is concentric after by two Person fixes;
(3) treated that bore hole position is hung equipment and fallen on boring template 4 according to what is demarcated on boring template 4;
(4) 1 main shaft of adjusting device is vertical with 4 plane of boring template, and what is be provided with by plane on boring template 4 is concentric with 4 center of boring template Three circles circumferential insertion T-slots equipment 1 is fixed with boring template 4;
(5) 1 main shaft of repetition measurement equipment it is vertical with 4 plane of boring template it is qualified after, main shaft along X, Y direction move, to main shaft rotate The alignment holes center superposition of runner coupling hole on center and boring template 4;
(6) equipment 1 installs drill bit, and main shaft rotation is bored, expands coupling hole, and preformed hole essence simultaneously along Z-direction to lower feeding Allowance;
(7) drill bit on equipment 1 is pulled down, cylindrical bar milling cutter is installed, main shaft extremely will along X, Y, Z three-shaft linkage processing runner coupling hole The size asked;
(8) cylindrical bar milling cutter on equipment 1 is pulled down, the main shaft of equipment 1 is moved along X, Y direction, to main shaft center of rotation with Alignment holes center superposition on the corresponding boring template 4 of one runner coupling hole to be processed;
(9) repeat step (6), step (7) complete in 1 major axis X of equipment, Y-axis stroke range next coupling hole plus Work;
(10) repeat the above steps (8), step (9) are until complete all runner connection in 1 major axis X of equipment, Y-axis stroke range The processing of axis hole;
(11) fixation of release apparatus 1 and boring template 4;As shown in Fig. 2 using the push rod adjusting apparatus 5 on equipment 1 and pull bar 6 drive equipment 1 of adjusting apparatus slides into shaft coupling bore region to be processed next beyond travel of spindle scope on boring template 4, completes to set The dividing movement of alignment holes on standby 1 relative boring template 4;
(12) repeat the above steps (4) are to step (10), to being located in 1 major axis X of equipment, Y-axis stroke range after indexing All coupling holes are processed;
(13) repeat the above steps (11) are to step (12) until completing the processing of whole runner coupling holes.
(1) embodiment 1:4 contour square chests 3 are put by 2 baseplane diameter circumference uniform distribution of runner;
(2) 2 crown flange of runner is hung on contour square chest 3, as shown in Figure 1 upward;
(3) boring template 4 is flat hangs in 2 crown Flange Plane of runner, adjusts 4 center of boring template and 2 center superposition of runner, deviation No more than 0.02mm;
(4) by boring template 4 and 2 fixation of runner;
(5) centre deviation of repetition measurement boring template 4 and runner 2, both faying face gaps are not more than 0.02mm;
(6) two alignment holes line of centres midpoints on 4 center of boring template and boring template are crossed, plane draws radiation, radiation on boring template 4 Line circumference uniform distribution;
(7) both boring template 4 and equipment 1 fitting planes are cleared up, equipment 1 is hung to boring template 4, by spoke drawn on boring template 4 Ray, the position of 1 relative boring template 4 of adjusting device is until most positioned at coupling hole quantity in 1 major axis X of equipment, Y stroke ranges;
(8) on 1 main-shaft axis of measuring apparatus and boring template 4 alignment holes vertical missing, and adjusting device 1, until above-mentioned hang down Straight deviation is not more than within 0.02mm;
(9) pass through circumferential insertion T-slot set on boring template 4 by equipment 1 and 4 fixation of boring template;
(10) 1 main-shaft axis of repetition measurement equipment is met with alignment holes vertical missing on boring template and is required;
(11) 1 main shaft of equipment is moved along X, Y-axis, is looked for corresponding with the coupling hole to be processed boring template of main shaft center of rotation 4 Positive hole center superposition, deviation are not more than 0.01mm;
(12) bored, expanded coupling hole, and reserved allowance for finish with drill bit;
(13) coupling hole is processed to the size for requiring with cylindrical bar milling cutter three-shaft linkage;
(14) clear up machined coupling hole;
(15) check that machined coupling hole meets required precision;
(16) 1 main shaft of equipment is moved along X, Y-axis, to main shaft center of rotation boring template corresponding with next coupling hole to be processed Alignment holes center superposition on 4, deviation are not more than 0.02mm;
(17) repetition (12nd) to (15) step completes the processing of next coupling hole in 1 major axis X of equipment, Y-axis stroke range;
(18) repeat (16th) to (17) step until completing the processing of all coupling holes in major axis X, Y-axis stroke range;
(19) fixation of release apparatus 1 and boring template 4;
(20) as shown in Fig. 2 while operating push rod adjusting apparatus 5 and pull bar adjusting apparatus 6 to drive equipment sliding on boring template 4 Move to beyond the next shaft coupling bore region to be processed of travel of spindle scope, complete the position indexing of alignment holes on 1 relative boring template 4 of equipment Motion;
(21) repeat (8th) to (10) step, complete the fixation of centering and equipment of the equipment with respect to boring template alignment holes and boring template;
(22) repeat (11st) to (18) step until completing on 1 relative boring template 4 of equipment after the position dividing movement of alignment holes, Positioned at the processing of all coupling holes in major axis X, Y-axis stroke range;
(23) repeat (19th) to (22) step until completing the processing of all coupling holes.
The practical application effect of the present invention is proved:Successfully solve original large rotary wheel coupling hole special plane processing method to fit With the difficult problem that scope is little, crudy is poor, production efficiency is improve.

Claims (1)

1. large rotary wheel coupling hole special plane processing method, the method comprise the steps:
(1) processed using removable vertical numerical control boring and milling bed apparatus (1), its main shaft has X, Y, Z numerical control linkage function;
(2) runner (2) crown coupling hole flange is placed on contour square chest (3) upward, after boring template (4) is concentric with runner (2) tune Both are fixed;
(3) treated that bore hole position is hung equipment and fallen on boring template (4) according to what is demarcated on boring template (4);
(4) adjusting device (1) main shaft is vertical with boring template (4) plane, be provided with by plane on boring template (4) with boring template (4) center The concentric circumferential insertion T-slot of three circles is fixed with boring template (4) by equipment (1);
(5) repetition measurement equipment (1) main shaft it is vertical with boring template (4) plane it is qualified after, main shaft along X, Y direction move, to main shaft rotate The alignment holes center superposition of runner coupling hole on center and boring template (4);
(6) equipment (1) installs drill bit, and main shaft rotation is bored, expands coupling hole, and preformed hole finishing simultaneously along Z-direction to lower feeding Spare time measures;
(7) pull down the drill bit on equipment (1), cylindrical bar milling cutter is installed, main shaft processes runner coupling hole to requiring along X, Y, Z three-shaft linkage Size;
(8) cylindrical bar milling cutter on equipment (1) is pulled down, the main shaft of equipment (1) is moved along X, Y direction, to main shaft center of rotation with Alignment holes center superposition on one runner coupling hole corresponding boring template (4) to be processed;
(9) repeat the processing that step (6), step (7) complete next coupling hole in equipment (1) major axis X, Y-axis stroke range;
(10) repeat the above steps (8), step (9) are until complete all runner shaft couplings in equipment (1) major axis X, Y-axis stroke range The processing in hole;
(11) fixation of release apparatus (1) and boring template (4);Using the push rod adjusting apparatus (5) on equipment (1) and pull bar adjustment dress Putting (6) drives equipment (1) to slide into shaft coupling bore region to be processed next beyond travel of spindle scope on boring template (4), completes to set The dividing movement of alignment holes on standby (1) relative boring template (4);
(12) repeat the above steps (4) are to step (10), to the institute being located at after indexing in equipment (1) major axis X, Y-axis stroke range There is coupling hole to be processed;
(13) repeat the above steps (11) are to step (12) until completing the processing of whole runner coupling holes.
CN201610982743.2A 2016-11-09 2016-11-09 Special machining method for large runner shaft coupling holes Pending CN106514143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610982743.2A CN106514143A (en) 2016-11-09 2016-11-09 Special machining method for large runner shaft coupling holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610982743.2A CN106514143A (en) 2016-11-09 2016-11-09 Special machining method for large runner shaft coupling holes

Publications (1)

Publication Number Publication Date
CN106514143A true CN106514143A (en) 2017-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610982743.2A Pending CN106514143A (en) 2016-11-09 2016-11-09 Special machining method for large runner shaft coupling holes

Country Status (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201076929Y (en) * 2007-09-27 2008-06-25 天津市天发重型水电设备制造有限公司 Drill jig for hydraulic turbine exterior admission taper tube flange hole
US20090311102A1 (en) * 2006-09-22 2009-12-17 Voith Siemens Hydro Power Generation Gmbh & Co. Kg Method for producing the rotor of a water turbine, and rotor
CN103753155A (en) * 2013-12-25 2014-04-30 重庆水轮机厂有限责任公司 Processing method for annular piston of water turbine and processing tool
CN204770776U (en) * 2015-06-25 2015-11-18 哈尔滨电机厂有限责任公司 A vertical boring and milling special machine tool of numerical control for processing hydraulic turbine end cover screw hole
CN105215640A (en) * 2015-11-04 2016-01-06 哈尔滨电机厂有限责任公司 Large-scale seat ring special plane technological method for processing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090311102A1 (en) * 2006-09-22 2009-12-17 Voith Siemens Hydro Power Generation Gmbh & Co. Kg Method for producing the rotor of a water turbine, and rotor
CN201076929Y (en) * 2007-09-27 2008-06-25 天津市天发重型水电设备制造有限公司 Drill jig for hydraulic turbine exterior admission taper tube flange hole
CN103753155A (en) * 2013-12-25 2014-04-30 重庆水轮机厂有限责任公司 Processing method for annular piston of water turbine and processing tool
CN204770776U (en) * 2015-06-25 2015-11-18 哈尔滨电机厂有限责任公司 A vertical boring and milling special machine tool of numerical control for processing hydraulic turbine end cover screw hole
CN105215640A (en) * 2015-11-04 2016-01-06 哈尔滨电机厂有限责任公司 Large-scale seat ring special plane technological method for processing

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Application publication date: 20170322

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