CN103213047B - Integrated precision grinding system and method for extra-large spherical surface - Google Patents
Integrated precision grinding system and method for extra-large spherical surface Download PDFInfo
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- CN103213047B CN103213047B CN201310134688.8A CN201310134688A CN103213047B CN 103213047 B CN103213047 B CN 103213047B CN 201310134688 A CN201310134688 A CN 201310134688A CN 103213047 B CN103213047 B CN 103213047B
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Abstract
The invention discloses an integrated precision grinding system and an integrated precision grinding method for an extra-large spherical surface. The grinding system comprises a sphere driving part, a first grinding wheel grinding tool, a second grinding wheel grinding tool, a third grinding wheel grinding tool, an abrasion grinding tool and a detection part, which are in the same X, Y and Z right-angled coordinate system. The grinding method comprises the following steps that the sphere driving part drives a ground sphere to rotate, the second and third grinding wheel grinding tools grind the left and right sides of the rotating ground sphere, the first grinding wheel grinding tool starts grinding the ground sphere after the ground sphere is ground by a certain depth by the second and third grinding wheel grinding tools, the second and third grinding wheel grinding tools stop grinding when a grinding depth is to be reached, the first grinding wheel grinding tool continues grinding the ground sphere until the size of the sphere is detected to meet a requirement, and the abrasion grinding tool performs abrasion treatment on the ground sphere. The method is used for the integrated precision grinding machining of distributed grinding, abrasion and detection of the extra-large ground sphere under a once mounting condition.
Description
Technical field
What the present invention relates to is sphere accurate grinding device and method in a kind of machine tool technology field, a kind of specifically super-huge sphere Precision Integrated grinding system and method.
Background technology
Super-huge high-precision sphere is the critical component in the Important Project such as large-scale petroleum natural gas transport, large-scale water generating in fluid, gas control equipment (as large-scale ball valve).The diameter of current super-huge spheroid is more than 2500mm, and weight is more than 20t.Due to the requirement of sealing and the requirement of service behaviour, this super-huge spheroid effects on surface roughness and geometric accuracy require all very high, so spherome surface could use after having to pass through accurate grinding processing and precise finiss.Geometric accuracy (sphericity) require high, surface roughness requirements is high, grinding area is large, is the technical barrier of this critical component processing.
The accurate grinding processing of super-huge spheroid, the method generally adopted at present is: spheroid rotates around horizontal center line, emery wheel grinding tool system is generally arranged in after processed spheroid, and the rotation centerline of emery wheel grinding tool and the rotation centerline of processed spheroid must be in same plane the guarantee grinding accuracy that also mutually intersects vertically.Emery wheel grinding tool system does feed motion by servomotor or driving stepper motor before backward.The accurate grinding processing of sphere is realized by the rolling movement synthesized by the high speed rotary motion of cup emery wheel grinding tool and the rotary motion of spheroid.
Through finding the literature search of prior art, application number is: 200610050360.8, and the Chinese patent application that name is called " digital controlled sperical grinding machine having auto detection ", is mainly provided with automatic detection device on lathe, achieves the online automatic detection of workpiece.But, because above-mentioned super-huge sphere size is large, Heavy Weight, adopt this kind of special single grinding tool Numerical Control Spherical Surface grinding machine to be difficult to realize the high efficiency accurate grinding of this super-huge sphere.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of super-huge sphere Precision Integrated grinding system is provided, to realize when once mounting, complete the integrated precise grinding of the distributed grinding to super-huge spheroid, grinding, detection, and acquisition is ground the better surface roughness of sphere; Another object of the present invention is to, a kind of super-huge sphere Precision Integrated method for grinding adopting described grinding system to implement is provided.
The present invention is achieved by the following technical solutions:
A kind of super-huge sphere Precision Integrated grinding system, it comprises: at same X, Y, ball drive parts in Z rectangular coordinate system, first emery wheel grinding tool, second emery wheel grinding tool, 3rd emery wheel grinding tool, grinding tool and detection part, this X, Y, Z rectangular coordinate system comprises initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z, wherein, the centre of sphere being ground spheroid of super-huge sphere overlaps with initial point O, the rotation centerline of ball drive parts overlaps with horizontal coordinate axis X, the rotation centerline of the first emery wheel grinding tool and the rotation centerline of grinding tool overlap with vertical coordinate axis Z, the rotation centerline of the second emery wheel grinding tool and the rotation centerline of the 3rd emery wheel grinding tool overlap with horizontal auxiliary coordinate axis Y ', this horizontal auxiliary coordinate axis Y ' and horizontal coordinate axis X are at angle and intersect at initial point O, the measurement point of detection part remains on horizontal coordinate axis Y, ball drive parts, first emery wheel grinding tool, second emery wheel grinding tool, the rotation centerline of the 3rd emery wheel grinding tool and grinding tool intersects at initial point O.
Described ball drive parts drive when being ground sphere installation and are ground spheroid and move left and right along horizontal coordinate axis X, the initial point O of the centre of sphere and X, Y, Z rectangular coordinate system realizing being ground spheroid overlaps, be ground sphere installation complete after these ball drive parts can drive and be ground spheroid and rotate around horizontal coordinate axis X.
The first described emery wheel grinding tool is arranged on the below being ground spheroid, its rotating diameter covers the whole whole sphere width being ground spheroid, this the first emery wheel grinding tool rotates around vertical coordinate axis Z, and do feed motion along in vertical coordinate axis Z-direction, grinding is ground the whole sphere of spheroid.
The second described emery wheel grinding tool and the rotating diameter of the 3rd emery wheel grinding tool are less than the rotating diameter of the first emery wheel grinding tool, second emery wheel grinding tool is arranged on the right lateral side being ground spheroid, 3rd emery wheel grinding tool is arranged on the front left side being ground spheroid, second emery wheel grinding tool and the 3rd emery wheel grinding tool rotate around horizontal auxiliary coordinate axis Y ', and do feed motion along horizontal auxiliary coordinate axis Y ' respectively to the centre of sphere, grinding is ground the sphere of the left and right sides one fixed width of spheroid respectively.
Described grinding tool is arranged on the top being ground spheroid, its rotating diameter covers the whole whole sphere width being ground spheroid, this grinding tool rotates around vertical coordinate axis Z, and does feed motion under vertical coordinate axis Z-direction, and grinding is ground the whole sphere of spheroid.
Described detection part is arranged on and is ground after spheroid.
Another technical scheme of the present invention is:
A kind of super-huge sphere Precision Integrated method for grinding adopting described grinding system to implement, it is characterized in that, require and control program according to grinding process, be ground spheroid described in first described ball drive parts drive to rotate, described second emery wheel grinding tool and the 3rd emery wheel grinding tool carry out grinding prior to described first emery wheel grinding tool to the left and right sides being ground spheroid rotated, after certain depth to be ground, the first emery wheel grinding tool starts startup and carries out grinding to being ground spheroid, when grinding depth is about to arrive, this the second emery wheel grinding tool and the 3rd emery wheel grinding tool stop grinding prior to the first emery wheel grinding tool, first emery wheel grinding tool continues to carry out grinding to being ground spheroid, till the detection size conforms grinding process requirement that detection part obtains, last described grinding tool carries out milled processed to obtain better surface roughness to being ground spheroid, thus realize being ground spheroid and completing distributed grinding when once mounting, grinding and the integrated precise grinding detected.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is provided with many cover emery wheel grinding tools, grinding tool and detection system in same grinding system, thus make the super-huge spheroid that is ground when once mounting, achieve the integrated precise grinding of distributed grinding, grinding, detection integration, greatly improve the efficiency of grinding.
2, complete in clamped one time the grinding of super-huge sphere and grinding in the present invention, achieve on-line checkingi, the super-huge sphere dimensional accuracy of therefore processing is high, surface roughness good simultaneously.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is elaborated.
As shown in Figure 1, super-huge sphere Precision Integrated grinding system of the present invention comprises: ball drive parts 3, first emery wheel grinding tool 2, second emery wheel grinding tool 4, the 3rd emery wheel grinding tool 7, grinding tool 6 and detection part 5, they are in same X, Y, Z rectangular coordinate system, and this X, Y, Z rectangular coordinate system comprises initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z.The centre of sphere being ground spheroid 1 of described super-huge sphere overlaps with initial point O, at this X, Y, in Z rectangular coordinate system, the rotation centerline of ball drive parts 3 overlaps with horizontal coordinate axis X, the rotation centerline of the first emery wheel grinding tool 2 and the rotation centerline of grinding tool 6 overlap with vertical coordinate axis Z, the rotation centerline of the second emery wheel grinding tool 4 and the rotation centerline of the 3rd emery wheel grinding tool 7 overlap with horizontal auxiliary coordinate axis Y ', this horizontal auxiliary coordinate axis Y ' is with horizontal coordinate axis X at angle (in the present embodiment, both become 45 degree) and intersect at initial point O, the measurement point of detection part 5 remains on horizontal coordinate axis Y, ball drive parts 3, first emery wheel grinding tool 2, second emery wheel grinding tool 4, the rotation centerline of five parts such as the 3rd emery wheel grinding tool 7 and grinding tool 6 intersects at initial point O.
When being ground spheroid 1 and installing, described ball drive parts 3 can drive and be ground spheroid 1 and move left and right (F) along horizontal coordinate axis X, the initial point O of the centre of sphere and X, Y, Z rectangular coordinate system realizing being ground spheroid 1 overlaps, and after being ground spheroid 1 installation, these ball drive parts 3 can drive and be ground spheroid 1 and rotate (n) around horizontal coordinate axis X.
The first described emery wheel grinding tool 2 is arranged on the below being ground spheroid 1, its rotating diameter covers the whole whole sphere width being ground spheroid 1, this the first emery wheel grinding tool 2 rotates (n1) around vertical coordinate axis Z, and do feed motion (F1) along in vertical coordinate axis Z-direction, grinding is ground the whole sphere of spheroid 1.
The second described emery wheel grinding tool 4 and the rotating diameter of the 3rd emery wheel grinding tool 7 are slightly smaller than the rotating diameter of the first emery wheel grinding tool 2, second emery wheel grinding tool 4 is arranged on the right lateral side being ground spheroid 1,3rd emery wheel grinding tool 7 is arranged on the front left side being ground spheroid 1, second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 horizontal auxiliary coordinate axis Y ' in X, Y, Z rectangular coordinate system rotates (n2, n3), and do feed motion (F2, F3) along horizontal auxiliary coordinate axis Y ' respectively to the centre of sphere, grinding is ground the sphere of the left and right sides one fixed width of spheroid 1 respectively.
Described grinding tool 6 is arranged on the top being ground spheroid 1, its rotating diameter covers the whole whole sphere width being ground spheroid 1, the vertical coordinate axis Z of this grinding tool 6 in X, Y, Z rectangular coordinate system rotates (n4), and feed motion (F4) is done under vertical coordinate axis Z-direction, grinding is ground the whole sphere of spheroid 1.
Described detection part 5 is arranged on and is ground after spheroid 1, and its measurement point remains on horizontal coordinate axis Y.
The super-huge sphere Precision Integrated method for grinding adopting grinding system of the present invention to implement is, described super-huge sphere Precision Integrated grinding system and super-huge sphere be ground after spheroid 1 installs, require and control program according to grinding process, be ground spheroid 1 described in first described ball drive parts 3 drive to rotate with n speed, described second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 carry out grinding prior to described first emery wheel grinding tool 2 to the left and right sides being ground spheroid 1 rotated, after certain depth to be ground, the first emery wheel grinding tool 2 starts startup and carries out grinding to being ground spheroid 1, when grinding depth is about to arrive, this the second emery wheel grinding tool 4 and the 3rd emery wheel grinding tool 7 stop grinding prior to the first emery wheel grinding tool 2, first emery wheel grinding tool 2 continues to carry out grinding to being ground spheroid 1, till the detection size conforms grinding process requirement that detection part 5 obtains, last described grinding tool 6 carries out milled processed to obtain better surface roughness to being ground spheroid 1, thus realize being ground spheroid 1 and completing distributed grinding when once mounting, grinding and the integrated precise grinding detected.
Claims (7)
1. a super-huge sphere Precision Integrated grinding system, it is characterized in that, described system comprises: at same X, Y, ball drive parts in Z rectangular coordinate system, first emery wheel grinding tool, second emery wheel grinding tool, 3rd emery wheel grinding tool, grinding tool and detection part, this X, Y, Z rectangular coordinate system comprises initial point O, horizontal coordinate axis X, horizontal coordinate axis Y and vertical coordinate axis Z, wherein, the centre of sphere being ground spheroid of super-huge sphere overlaps with initial point O, the rotation centerline of ball drive parts overlaps with horizontal coordinate axis X, the rotation centerline of the first emery wheel grinding tool and the rotation centerline of grinding tool overlap with vertical coordinate axis Z, the rotation centerline of the second emery wheel grinding tool and the rotation centerline of the 3rd emery wheel grinding tool overlap with horizontal auxiliary coordinate axis Y ', this horizontal auxiliary coordinate axis Y ' and horizontal coordinate axis X are at angle and intersect at initial point O, the measurement point of detection part remains on horizontal coordinate axis Y, ball drive parts, first emery wheel grinding tool, second emery wheel grinding tool, the rotation centerline of the 3rd emery wheel grinding tool and grinding tool intersects at initial point O.
2. super-huge sphere Precision Integrated grinding system according to claim 1, it is characterized in that, described ball drive parts drive when being ground sphere installation and are ground spheroid and move left and right along horizontal coordinate axis X, the initial point O of the centre of sphere and X, Y, Z rectangular coordinate system realizing being ground spheroid overlaps, be ground sphere installation complete after these ball drive parts can drive and be ground spheroid and rotate around horizontal coordinate axis X.
3. super-huge sphere Precision Integrated grinding system according to claim 1, it is characterized in that, the first described emery wheel grinding tool is arranged on the below being ground spheroid, its rotating diameter covers the whole whole sphere width being ground spheroid, this the first emery wheel grinding tool rotates around vertical coordinate axis Z, and do feed motion along in vertical coordinate axis Z-direction, grinding is ground the whole sphere of spheroid.
4. super-huge sphere Precision Integrated grinding system according to claim 1, it is characterized in that, the second described emery wheel grinding tool and the rotating diameter of the 3rd emery wheel grinding tool are less than the rotating diameter of the first emery wheel grinding tool, second emery wheel grinding tool is arranged on the right lateral side being ground spheroid, 3rd emery wheel grinding tool is arranged on the front left side being ground spheroid, second emery wheel grinding tool and the 3rd emery wheel grinding tool rotate around horizontal auxiliary coordinate axis Y ', and do feed motion along horizontal auxiliary coordinate axis Y ' respectively to the centre of sphere, grinding is ground the sphere of the left and right sides one fixed width of spheroid respectively.
5. super-huge sphere Precision Integrated grinding system according to claim 1, it is characterized in that, described grinding tool is arranged on the top being ground spheroid, its rotating diameter covers the whole whole sphere width being ground spheroid, this grinding tool rotates around vertical coordinate axis Z, and feed motion is done under vertical coordinate axis Z-direction, grinding is ground the whole sphere of spheroid.
6. super-huge sphere Precision Integrated grinding system according to claim 1, it is characterized in that, described detection part is arranged on and is ground after spheroid.
7. the super-huge sphere Precision Integrated method for grinding adopting grinding system according to claim 1 to implement, it is characterized in that, require and control program according to grinding process, be ground spheroid described in first described ball drive parts drive to rotate, described second emery wheel grinding tool and the 3rd emery wheel grinding tool carry out grinding prior to described first emery wheel grinding tool to the left and right sides being ground spheroid rotated, after certain depth to be ground, the first emery wheel grinding tool starts startup and carries out grinding to being ground spheroid, when grinding depth is about to arrive, this the second emery wheel grinding tool and the 3rd emery wheel grinding tool stop grinding prior to the first emery wheel grinding tool, first emery wheel grinding tool continues to carry out grinding to being ground spheroid, till the detection size conforms grinding process requirement that detection part obtains, last described grinding tool carries out milled processed to being ground spheroid, thus realize being ground spheroid and completing distributed grinding when once mounting, grinding and the integrated precise grinding detected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310134688.8A CN103213047B (en) | 2013-04-18 | 2013-04-18 | Integrated precision grinding system and method for extra-large spherical surface |
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| CN201310134688.8A CN103213047B (en) | 2013-04-18 | 2013-04-18 | Integrated precision grinding system and method for extra-large spherical surface |
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| CN103213047B true CN103213047B (en) | 2015-07-01 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104175222B (en) * | 2014-08-25 | 2016-06-29 | 上海交通大学 | Large spherical surface grinding trace feature image harvester and sphericity method of discrimination |
| CN108890448A (en) * | 2018-09-10 | 2018-11-27 | 昆山市洛基苏产品整合设计有限公司 | A kind of multi-shaft processing machine |
| CN109605186B (en) * | 2018-12-04 | 2022-03-15 | 厦门大学深圳研究院 | Sphere polishing machine |
| CN112276682B (en) * | 2020-10-20 | 2022-10-04 | 吴忠仪表有限责任公司 | Method for processing ball valve vacuum cladding ball core with uniform macroscopic hardness |
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| DE3202723A1 (en) * | 1981-02-04 | 1982-09-16 | Innse Innocenti Santeustacchio S.p.A., Brescia | Machine tool for machining spherical workpieces of large dimensions |
| JP2514539B2 (en) * | 1992-07-29 | 1996-07-10 | 豊工機株式会社 | Round spherical honing method |
| CN101053935A (en) * | 2007-05-31 | 2007-10-17 | 浙江湖州北道数控精密机械有限公司 | Numerically controlled ball grinding vehicle |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
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Patent Citations (6)
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| DE2732002A1 (en) * | 1977-07-15 | 1979-01-25 | Thielenhaus Maschf | Grinding machine for spherical valve parts - uses cup grinding wheels intersecting axis of blank for constant setting |
| DE3202723A1 (en) * | 1981-02-04 | 1982-09-16 | Innse Innocenti Santeustacchio S.p.A., Brescia | Machine tool for machining spherical workpieces of large dimensions |
| JP2514539B2 (en) * | 1992-07-29 | 1996-07-10 | 豊工機株式会社 | Round spherical honing method |
| CN101053935A (en) * | 2007-05-31 | 2007-10-17 | 浙江湖州北道数控精密机械有限公司 | Numerically controlled ball grinding vehicle |
| CN101172330A (en) * | 2007-11-22 | 2008-05-07 | 上海交通大学 | High-rigidity turning spherical surface numerical control accurate grinding equipment |
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