CN101664818B - Boring jig, manufacturing method thereof and method for processing flange connection holes of generator set rotors using boring jig - Google Patents
Boring jig, manufacturing method thereof and method for processing flange connection holes of generator set rotors using boring jig Download PDFInfo
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- CN101664818B CN101664818B CN2009101677672A CN200910167767A CN101664818B CN 101664818 B CN101664818 B CN 101664818B CN 2009101677672 A CN2009101677672 A CN 2009101677672A CN 200910167767 A CN200910167767 A CN 200910167767A CN 101664818 B CN101664818 B CN 101664818B
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Abstract
The invention discloses a boring jig used for processing a flange connection hole of a generator set rotor. The boring jig is in a circular disc shape; a locating stop opening matched with the rotor flange is arranged on the end surface of the boring jig, which leads the boring jig and the rotor flange to be concentric; basic holes are arranged on the boring jig, wherein, the number of the basic holes is the same as that of the flange connection holes, and the position of the basic holes is consistent with that of the flange connection holes; the invention is characterized in that the boring jig is a sub-female die, at least is provided with two templates, and all the basic holes of the templates have the same quantity, same aperture and consistent position. When in use, the sub-female die is detached, and one template is arranged on each flange, thus connection holes of multiple flanges can be processed at the same time, which saves waiting time of boring jig and can shorten the manufacturing cycle of generator sets.
Description
Technical field
The present invention relates to a kind of boring template, specifically, is a kind of boring template that is used for processing flange connection holes of generator set rotors, further relates to the manufacturing approach of this boring template, and with the method for this boring template processing vapor turbine wheel flange connection holes.This boring template is the primary and secondary mould, and the polylith template is arranged, and can process simultaneously the flange connection holes of each section electric generating set rotor, to shorten the unit manufacturing cycle.
Background technology
Generating set is made up of prime mover (steam turbine, gas turbine, nuclear energy machine) and generator; Prime mover rotor of Generator Set is usually designed to segmental structure; The employing flange connects between section and the section, also adopts flange to connect between latter end rotor and the generator amature, and flange couples together with attachment bolt through connection holes; Play the effect of transmitting moment of torsion, whole rotor axial system is rotated.This just requires every pair of flange with one heart necessary, and the connection holes on a pair of flange must have identical position degree.
Because each section prime mover rotor and generator amature all are large components, receive the lathe capabilities limits, when the processing flange connection holes; Can not two-stage rotor combination processing can only be processed, for the flange connection holes that guarantees two-stage rotor has identical position degree in split; Adopt technological means to be at present; Making a boring template, is benchmark with this boring template, processes the flange connecting hole of adjacent two-stage rotor respectively; Because the flange connecting hole of two-stage rotor processes with same boring template, and identical position degree must be arranged.
Problem is, uses said method, once can only process a flange, after the necessary connection holes completion of processing of waiting on this flange, could boring template be used to process another flange, waits for the boring template waste plenty of time, has prolonged the unit manufacturing cycle.
Summary of the invention
The object of the invention is in order to overcome the deficiency of prior art, at first a kind of boring template will to be provided, and this boring template is the primary and secondary mould, and the polylith template is arranged, and can be contained in respectively on a plurality of flanges, processes the connection holes of these flanges simultaneously; Further, the processing method of this primary and secondary mould is provided, make the datum hole on each template that identical position degree arranged; Further again, the method with this boring template processing flange connection holes of generator set rotors is provided.
The present invention adopts such technical scheme to realize:
A kind of boring template that is used for processing flange connection holes of generator set rotors; This boring template is in the form of annular discs; The positioning spigot that cooperates with rotor flange is arranged on the end face of boring template, make boring template and rotor flange concentric, datum hole identical with flange connection holes quantity and that the position degree is consistent is arranged on the boring template; Said boring template is the primary and secondary mould; Have at least two templates, the quantity of the datum hole of all templates is identical, the aperture is identical, the position degree consistent, and the technology positioning spigot that the forward surface of adjacent two boring template templates has is concavo-convex step fit structure.
Said boring template has two templates.
Said boring template has three or more templates.
The manufacturing approach of above-mentioned boring template comprises step:
(1). after all boring template blankings, process an end face of each boring template respectively, and on this end face the processing technology positioning spigot, make the forward surface of adjacent two boring templates be concavo-convex step fit structure; And on each boring template correspondence position processing technology joint bolt hole.
(2). all boring templates are overlaped, and seam aligns, and penetrates screw in the hole, and all boring templates tight, are become integral body.
(3). process outer circumference surface, end face, the datum hole of whole boring template respectively, wherein, process the positioning spigot that cooperates with rotor flange on the end face.
When boring template has only two templates; The positioning spigot that the technology positioning spigot is set and cooperates with rotor flange; The radius of this technology positioning spigot is different with the radius of the positioning spigot that cooperates with rotor flange; The technology positioning spigot is located on the forward surface of two templates, and the positioning spigot that cooperates with rotor flange is located on the reverse face of two templates; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; Or
The positioning spigot that cooperates with rotor flange only is set; Method is: the positioning spigot that cooperates with rotor flange in the lateral surface setting of a template; On two template forward surfaces, the technology positioning spigot is set; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; The radius of this technology positioning spigot is identical with the radius of the positioning spigot that cooperates with rotor flange, is the technology positioning spigot of two templates, is again the positioning spigot that cooperates with rotor flange of another piece template;
When boring template has three or more templates; Lateral surface in two templates that are positioned at both sides is provided with the positioning spigot that cooperates with rotor flange respectively; The technology positioning spigot is set on the forward surface of adjacent forms; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; The radius of this technology positioning spigot is identical with the radius of the positioning spigot that cooperates with rotor flange, is the technology positioning spigot of adjacent forms, is again the work positioning spigot that cooperates with rotor flange of non-outboard template.
Method with above-mentioned boring template processing flange connection holes of generator set rotors comprises step:
1.. a boring template is installed respectively on the flange of each section electric generating set rotor, is fixed with screw rod;
2.. each section rotor is gone up numerical control borer separately respectively, and the centering boring template is concentric with rotor flange; Install boring bar, detect the center of the datum hole on the boring template one by one, and be recorded in the program with instrument; Adjust cutter, the center, hole of writing down in the follow procedure bores the connection holes on the rotor flange one by one.
3.. start each boring machine, process the connection holes of each flange simultaneously.
The invention has the beneficial effects as follows:
After adopting above-mentioned primary-secondary type boring template structure, can realize processing simultaneously with the epitrochanterian flange connection holes of a plurality of segmentations of same boring template processing, avoid the wait boring template, save the plenty of time, improve production efficiency needs; Adopt said method can guarantee that the primary-secondary type boring template that produces is in full accord.
Description of drawings
Fig. 1 is a kind of structural representation (two templates, technology seams and work seams and establish, radius is different) of this boring template;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is a boring template working state schematic representation shown in Figure 1.
Fig. 4 is the another kind of structural representation (three templates, the double seam of working of technology seam, radius is identical) of this boring template
Code name implication among the figure: 1-subtemplate; The 2-caster; The 3-attachment screw; The 4-alignment pin; The 5-hoisting ring; Q-technology positioning spigot; The P-positioning spigot of working; The L-positioning guide hole.
The specific embodiment
Normally three sections of electric generating set rotors, wherein prime mover (steam turbine, gas turbine, nuclear energy machine) is two sections, and another section is a generator amature, and adjacent two-stage rotor adopts flange to connect, so two pairs of flanges are arranged.The size of two pairs of flanges maybe be identical, also maybe be different, and size needs processing two cover primary and secondary boring templates not simultaneously, and every cover boring template only needs two templates.When measure-alike, only need processing one cover primary and secondary boring template, three of template numbers.
Fig. 1, Fig. 2 illustrate a kind of primary and secondary mould of two templates, are made up of subtemplate 1 and caster 2, and technology positioning spigot Q is set on the forward surface of two templates, are concavo-convex step fit structure; The lateral surface of two templates is provided with the work positioning spigot P that cooperates with rotor flange, and the radius of technology positioning spigot Q is different with the radius of work positioning spigot P.Lifting during for ease of loading and unloading, template is provided with hoisting ring 5.
The procedure of processing of this primary and secondary mould is: elder generation is processing technology positioning spigot Q on the end face of each boring template respectively; Then subtemplate 1 and caster 2 are overlaped; Insert alignment pin 4 in draw-bore and the technology connection holes, pin-and-hole, screw in attachment screw 3 in the technology connection holes; Two templates tight, are become integral body; The outer circumference surface and the end face of whole again processing primary and secondary mould, during the processing end face, car goes out work positioning spigot P; Mill boring bar positioning guide hole L at last.
Step with above-mentioned primary and secondary mould processing flange connection holes of generator set rotors is:
1.. the primary and secondary mould is taken apart; Subtemplate 1 is contained in respectively on the abutted flange of adjacent rotor with caster 2, and its work positioning spigot P cooperates with flange, makes template and flange concentric; Fix with frock; Fig. 3 shows the user mode of primary and secondary mould, and subtemplate 1 is contained on the flange of rotor A, and caster 2 is contained on the flange of rotor B;
2.. adjacent two-stage rotor A, B are gone up boring machine separately respectively, and boring bar is packed in the positioning guide hole L of boring template, adjusts cutter;
3.. start each boring machine, process the connection holes of each flange simultaneously, after a connection holes boring is good, boring bar is pulled down, another connection holes of packing into is processed it, so repeatedly, until processing all connection holes.
When the physical dimension of two pairs of flanges is identical; Can the primary and secondary mould be designed to Fig. 4 structure; Have three templates; The radius of the technology positioning spigot on the forward surface of adjacent forms is identical with the radius of the positioning spigot that cooperates with rotor flange, is the technology positioning spigot, is again the work positioning spigot that cooperates with rotor flange.
For the primary and secondary mould that has only two templates, also can adopt the structure of Fig. 4.
For the generating set of some special constructions, the rotor hop count maybe be more, if the physical dimension of abutted flange is different; Can make the primary and secondary mould of a plurality of two templates; If the physical dimension of abutted flange is identical, can use for reference Fig. 4 structure, just increase template number; Like this, can process simultaneously the flange connection holes of all rotors.Certainly, for the rotor that is positioned at interlude, the flange connection holes at its two ends still will be processed separately, because same section rotor can not be gone up two boring machines simultaneously.
Claims (6)
1. boring template that is used for processing flange connection holes of generator set rotors; This boring template is in the form of annular discs; The positioning spigot that cooperates with rotor flange is arranged on the end face of boring template, make boring template and rotor flange concentric, datum hole identical with flange connection holes quantity and that the position degree is consistent is arranged on the boring template; It is characterized in that: said boring template is the primary and secondary mould; Have at least two templates, the quantity of the datum hole of all templates is identical, the aperture is identical, the position degree consistent, and the technology positioning spigot that the forward surface of adjacent two boring template templates has is concavo-convex step fit structure.
2. the boring template that is used for processing flange connection holes of generator set rotors according to claim 1 is characterized in that: said boring template has two templates.
3. the boring template that is used for processing flange connection holes of generator set rotors according to claim 1 is characterized in that: said boring template has three or more templates.
4. the manufacturing approach of the said boring template of claim 1 comprises step:
1.. after all boring template blankings, process an end face of each boring template respectively, and on this end face the processing technology positioning spigot, make the forward surface of adjacent two boring templates be concavo-convex step fit structure; And on each boring template correspondence position processing technology joint bolt hole;
2.. all boring templates are overlaped, and seam aligns, and penetrates screw in the hole, and all boring templates tight, are become integral body;
3.. process outer circumference surface, end face, the datum hole of whole boring template respectively, wherein, process the positioning spigot that cooperates with rotor flange on the end face.
5. according to the manufacturing approach of the said boring template of claim 4; It is characterized in that: when boring template has only two templates; The positioning spigot that the technology positioning spigot is set and cooperates with rotor flange; The radius of this technology positioning spigot is different with the radius of the positioning spigot that cooperates with rotor flange, and the technology positioning spigot is located on the forward surface of two templates, and the positioning spigot that cooperates with rotor flange is located on the reverse face of two templates; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; Or
The positioning spigot that cooperates with rotor flange only is set; Method is: the positioning spigot that cooperates with rotor flange in the lateral surface setting of a template; On two template forward surfaces, the technology positioning spigot is set; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; The radius of this technology positioning spigot is identical with the radius of the positioning spigot that cooperates with rotor flange, is the technology positioning spigot of two templates, is again the positioning spigot that cooperates with rotor flange of another piece template;
When boring template has three or more templates; Lateral surface in two templates that are positioned at both sides is provided with the positioning spigot that cooperates with rotor flange respectively; The technology positioning spigot is set on the forward surface of adjacent forms; Divide the body processing technology positioning spigot earlier, after the synthetic integral body of template group, the positioning spigot that reprocessing cooperates with rotor flange; The radius of this technology positioning spigot is identical with the radius of the positioning spigot that cooperates with rotor flange, is the technology positioning spigot of adjacent forms, is again the work positioning spigot that cooperates with rotor flange of non-outboard template.
6. with the method for the said boring template processing flange connection holes of generator set rotors of claim 1, comprise step:
1.. a boring template is installed respectively on the flange of each section electric generating set rotor, is fixed with screw rod;
2.. each section rotor is gone up numerical control borer separately respectively, and the centering boring template is concentric with rotor flange; Install boring bar, detect the center of the datum hole on the boring template one by one, and be recorded in the program with instrument; Adjust cutter, the center, hole of writing down in the follow procedure bores the connection holes on the rotor flange one by one;
3.. start each boring machine, process the connection holes of each flange simultaneously.
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| CN2009101677672A CN101664818B (en) | 2009-09-26 | 2009-09-26 | Boring jig, manufacturing method thereof and method for processing flange connection holes of generator set rotors using boring jig |
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| CN2009101677672A CN101664818B (en) | 2009-09-26 | 2009-09-26 | Boring jig, manufacturing method thereof and method for processing flange connection holes of generator set rotors using boring jig |
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| CN101664818B true CN101664818B (en) | 2012-07-04 |
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| CN102873518B (en) * | 2012-10-26 | 2015-07-22 | 重庆赛力盟电机有限责任公司 | Process of machining reamed holes on flange type coupling |
| CN106914645B (en) * | 2015-12-24 | 2019-08-06 | 上海电气电站设备有限公司 | Boring machine for rotor coupling scene bore hole |
| CN105444642B (en) * | 2015-12-25 | 2017-11-14 | 辽宁辽旭汽车自动化装备有限公司 | A kind of biradical quasi- hole location tolerance detection device of part |
| CN111842975B (en) * | 2020-07-30 | 2022-09-02 | 哈尔滨电机厂有限责任公司 | Method for machining connecting pin hole of steam end coupler of rotor of large steam turbine generator |
| CN111958012B (en) * | 2020-08-18 | 2022-07-12 | 哈尔滨电机厂有限责任公司 | Method for guaranteeing precision of shaft coupling and shaft hole boring |
| CN113084476B (en) * | 2021-04-07 | 2023-03-31 | 四川华川基业建设集团有限公司 | Steam turbine unit installation process |
| CN114799758A (en) * | 2022-05-06 | 2022-07-29 | 重庆水轮机厂有限责任公司 | Processing technology for fine matching connecting hole of water pump spindle and motor spindle |
| CN115008232A (en) * | 2022-06-01 | 2022-09-06 | 大连华锐船用曲轴有限公司 | Positioning device and method for replacing same hinge of marine crankshaft and ship shafting flange holes |
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