CN102078981B - Precision boring tool for realizing multi-meter-level span micron-level coaxial precision hole - Google Patents
Precision boring tool for realizing multi-meter-level span micron-level coaxial precision hole Download PDFInfo
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- CN102078981B CN102078981B CN 201010605524 CN201010605524A CN102078981B CN 102078981 B CN102078981 B CN 102078981B CN 201010605524 CN201010605524 CN 201010605524 CN 201010605524 A CN201010605524 A CN 201010605524A CN 102078981 B CN102078981 B CN 102078981B
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- autocollimator
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- 238000012545 processing Methods 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000029777 axis specification Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000007514 turning Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 4
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- 238000005516 engineering process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000003801 milling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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- 238000007790 scraping Methods 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
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Abstract
The invention relates to a precision boring tool for realizing multi-meter-level span micron-level coaxial precision holes, which comprises an auxiliary truss structure workbench, a workbench center calibration component, a tetrahedral prism reflector and adjustment component, an optical autocollimator and an adjustment component. The bottom of the auxiliary truss structure workbench is fixed on the workbench of the original common boring machine; the optical autocollimator and the adjusting component are fixed on one side end of the base of the original common boring machine; the workbench center calibration assembly, the tetrahedral prism reflector and the adjusting assembly are fixed on the auxiliary truss structure workbench. The tool realizes the precise boring processing function of the multi-meter-level span coaxial precision in the micron-level hole on a small-sized common boring machine.
Description
Technical field
The invention belongs to the Machining Technology field, relate to the accurate boring processing frock that on the common boring machine of 2 meter levels, realizes the coaxial precision holes of 3 meter level span micron dimensions, relate to corresponding processing method simultaneously.
Background technology
At present; National conditions with regard to China are set out, and in each machine industry, the common boring machine car of 2 meter levels utilization rate still is suitable height; Because it has low price, the operator is required characteristics such as lower, that working ability is strong, but the heavy parts precision that it processes is relatively low.Precision at photo-electric telescope mechanical system center shafting is the basis of whole accuracy of instrument, and particularly the processing of coaxial aperture will directly have influence on axle system and rock the precision with complete machine in the pitch axis system.The processing of traditional little span high accuracy coaxial aperture, general method are on the high accuracy boring and milling equipment of countries such as import Germany, Switzerland, directly to realize accurate boring.And large telescope is because the constitutional detail size is big, Heavy Weight, relative accuracy are high; Both made to have 3 meter levels even bigger import high-end large-scale numerically-controlled precise floor type boring machine, and only relied on the coaxial precision in hole that the conventional method of equipment precision also is difficult to guarantee 3 meters spans in micron dimension.On the common boring machine BFT130/5 that dispatched from the factory in 1970, realize the accurate boring processing of 3 meters coaxial precision of span in micron dimension.
Summary of the invention
In order to overcome the deficiency of existing equipment and traditional process technology, the purpose of this invention is to provide a kind of frock that on common boring machine, realizes the accurate boring processing of 3 meters span micron dimension coaxial apertures,
For realizing said purpose; A kind of accurate boring processing frock that on common boring machine, realizes the coaxial precision holes of many meter levels span micron order of the present invention; Technical solution problem technical scheme comprises: assembly, four sides rib body speculum and adjustment assembly and optical-autocollimator and adjustment assembly are demarcated in auxiliary truss structure workbench, workbench center, and the bottom of auxiliary truss structure workbench is fixed on the workbench of former common boring machine; Optical-autocollimator and adjustment assembly are fixed on the side of pedestal of former common boring machine; The workbench center is demarcated assembly and is fixed on the auxiliary truss structure workbench with four sides rib body speculum and adjustment assembly.
The present invention's advantage compared with prior art is:
(1) the present invention has solved conventional art at common boring machine equipment and can't realize the technical barrier of the coaxial precision of 3 meter level span axis holes in micron dimension, for the Precision Machining of bigger span coaxial aperture in the manufacturing of large photoelectric telescope provides technical foundation.Frock of the present invention is installed on the side of platen and pedestal, selects suitable replacer, cutter, machined parameters just can realize the accurate boring processing of 3 meter level span coaxial apertures again.
This processing method tool structure for processing is reasonable; Processing method is convenient to operation; The processing parts distortion is little, precision is high, processes 3 meter level span hole axialities and has reached 0.008mm, has solved traditional diamond-making technique and can't realize the difficult problem that 3 meter level span micron dimension precision coaxial apertures are processed.
(2) because the common boring machine utilization rate of China is high; Big span coaxial aperture is a common strength member in the precision optical instrument development; Process technology of the present invention and frock have solved the too little problem that can't be installed of workbench; Solved the too big problem of workbench end face error, solved part because overweight can't the placement and work table rotation central issue solved the too big problem of work table rotation trueness error.The present invention has very big value, and its small investment, economical and practical.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an auxiliary truss structure table mechanism front view of the present invention;
Fig. 3 is an auxiliary truss structure table mechanism side view of the present invention;
Fig. 4 is an auxiliary truss structure workbench scheme of installation of the present invention;
Fig. 5 is that the assembly cutaway view is demarcated at workbench of the present invention center;
Fig. 6 is that the assembly scheme of installation is demarcated at workbench of the present invention center
Fig. 7 is four sides of the present invention rib body speculum and adjustment assembly sketch map;
Fig. 8 is four sides of the present invention rib body speculum and adjustment assembly scheme of installation;
Fig. 9 is of the present invention 0.2 " optical-autocollimator and adjustment assembly sketch map;
Figure 10 is of the present invention 0.2 " optical-autocollimator and adjustment assembly scheme of installation;
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer,, and, the present invention is realized the accurate boring processing frock of the coaxial precision holes of many meter levels span micron order explains further details with reference to accompanying drawing below in conjunction with specific embodiment.
Step S1: as shown in Figure 1; Demarcate assembly 2, four sides rib body speculum and adjustment assembly 3, optical-autocollimator and adjustment assembly 4 four parts by auxiliary truss structure workbench 1, workbench center and form, the bottom of auxiliary truss structure workbench 1 is fixed on the workbench A of former common boring machine; Optical-autocollimator and adjustment assembly 4 are fixed on the side of pedestal B of former common boring machine; The workbench center is demarcated assembly 2 and is fixed on the auxiliary truss structure workbench 1 with four sides rib body speculum and adjustment assembly 3.
As Fig. 2, shown in Figure 3 shown in, auxiliary truss structure workbench 1 is to have two quadras 5 and support member 6 and nine connecting plates 7 to be welded.Auxiliary truss structure workbench 1 is the expansion range of work in the restriction of former common boring machine self load capacity; Quadra 5 adopts 100mm * 100mm * δ 8mm seamless cold rectangular steel tube welding in the auxiliary truss structure workbench 1; Support member 6 adopts 80mm * 80mm * δ 6mm seamless cold rectangular steel tube; The truss structure weight that final welding forms is merely 0.76 ton; After the workbench A that this frock is fixed on former common boring machine goes up, auxiliary truss structure workbench 1 realize will former common boring machine workbench A size to be increased to 2700mm * 2700mm, assisted truss structure workbench 1 end face plane error by 1400mm * 1600mm be 0.003mm.
But 16 pressing plates of truss structure workbench 1 usefulness and 16 screws of should assisting as shown in Figure 4 are fixed on after former workbench A goes up; On main shaft, adsorb amesdial; Rotary table carries out 4 the connecting plate end faces in scraping upper end according to the amesdial reading then, up to detecting the number of degrees less than 0.003mm.
Step S2: as shown in Figure 5, it is to be connected to form by adjusting tube 8, connecting plate 9, standard annulus 10 that assembly 2 is demarcated at the workbench center; The degree of depth that adjusting tube 8 upper surfaces are provided with symmetry on 8 circumference is the screw hole of 20mm, and connecting plate 9 end faces are provided with 8 through holes, and 8 screws of employing are fastenedly connected between adjusting tube 8 and the connecting plate 9.
The performing step that assembly 2 is demarcated at workbench as shown in Figure 6 center comprises: at first 4 screws of connecting plate 9 usefulness are fixed on and regulate on the tube; The depth of parallelism that the method that combines through grinding and grinding makes end face is less than 0.002mm; Be that the standard annulus of Φ 200mm (cylindrical) * Φ 150mm (endoporus) * δ 20mm is fixed on the connecting plate 9 with pressing plate and screw with cylindricity less than the 0.001mm specification then; Simultaneously on the main shaft of former common boring machine, adsorb amesdial, truss structure workbench 1 and micro-manual movement centering are assisted in rotation then, and the workbench A errors of centration that makes standard circle ring center and former common boring machine is in 0.002mm; Rotate the main shaft of former common boring machine more simultaneously and read main shaft commentaries on classics reading; Move former common boring machine X to guide rail according to the amesdial reading, former common boring spindle center is overlapped with auxiliary truss structure workbench 1 center, confirm that x is to centre coordinate; The realization theory axis determination; Pass through X in the processing to guide rail motion compensation errors of centration, make the theoretical coaxial axis of required processing parts, solved because processing parts can't be placed into the work table rotation central issue of the former common boring machine of boring machine through auxiliary truss structure workbench 1 centre of gyration.
Step S3: then assembly 2 is demarcated at the workbench center and taken off from auxiliary truss structure workbench, the X of record actual measurement is to the centre coordinate data.
Step S4: as shown in Figure 7, four sides rib body speculum and adjustment assembly 3 are to form through four sides rib body speculum 11, three-dimensional adjustment turntable 12, adjusting tube 13.
As shown in Figure 8ly will select high-accuracy manual four sides angle precision of throwing system and accurately demarcate less than being 1 " four sides rib body speculum 11 usefulness shellacs be fixed on the upper surface of three-dimensional adjustment turntable 12; regulating the degree of depth that tube 13 upper surfaces are provided with symmetry on 8 circumference is the screw hole of 20mm, three-dimensional adjustment turntable 12 and regulate and adopt 8 screws and pressing plate to be fastenedly connected between the tube 13.Rib body speculum and adjustment assembly 3 are installed on the connecting plate 9 of auxiliary truss structure workbench 1 center on four sides then.Select 0.2 for use the four sides rib body speculum of " optics autocollimatic-straight appearance 15 select accurate manual four sides angle precision of throwing system accurately demarcate " less than 1; Four rib rib body speculums 11 wherein and auxiliary truss structure workbench 1 fixing back revolution synchronously; Realize the light catoptric imaging in auxiliary truss structure workbench 1 turning course; 0.2 " optical-autocollimator is realized four sides rib body speculum 11 angle of revolution readings, thereby realizes the workbench A angle of revolution of former common boring machine " is promoted to 1.1 " by error 15.
Step S5: as shown in Figure 9, optical-autocollimator and adjustment assembly 4 are made up of lifting platform 14 and three-dimensional adjustment turntable 12, optical-autocollimator 15, optical-autocollimator 15 selects 0.2 for use " optical-autocollimator 15.Optical-autocollimator 15 directly is placed on the upper surface of three-dimensional adjustment turntable 12; The degree of depth that lifting platform 14 upper surfaces are provided with symmetry on 8 circumference is the screw hole of 20mm, adopts 8 screws and pressing plate to be fastenedly connected between three-dimensional adjustment turntable 12 and the lifting platform 14.
Shown in figure 10 optical-autocollimator and adjustment assembly 4 are installed on the former common boring machine tailstock, adopt lifting platform 14 and three-dimensional adjustment turntable 12 combinations can observe imaging and reading fast.In the processing former common boring machine centering one end axis hole 0.1mm with interior prerequisite under; Position according to four sides rib body speculum and adjustment assembly 3; Carry out the coarse regulation of lifting platform height, the turntable 12 of the three-dimensional adjustment of adjustment simultaneously carries out the observation of four sides rib body speculum 11, then optical-autocollimator 15 readings is carried out record; When processing other end axis hole, by assist 180 ° of accurately revolutions of truss structure workbench 1 rotary table from optical collimator 15 readings.The principle of utilizing optical-autocollimator accurately to take measurement of an angle adopts the high-accuracy manual four prism speculums 11 of throwing system, and the angle precision of corresponding sides is 1 ", this angle precision is accurately demarcated, and in actual monitored, this error can be revised; It is 0.2 that optical-autocollimator 15 is selected precision for use ", the influence of environment is about 0.2 ", the human eye error in reading is about 0.5 ".Getting safety coefficient is 2, calculates the revolution composition error that autocollimator is kept watch on auxiliary truss structure workbench 1, and can control the horizontal rotation positioning accuracy is 1.1 ".
Step S6: will then required processing parts be installed in and also carry out fastening on the auxiliary truss structure workbench 1 with 8 screw rods and 4 pressing plates.
Step S7: begin the required processing parts of accurate boring; Record x is to coordinate actual numerical value x ' when centering one stomidium; Carry out accurate boring processing, after auxiliary then truss structure workbench 1 turns round 180 °, after guide rail moves x-x ' numerical value round about, process another stomidium again through X.
The above; Be merely the specific embodiment among the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with this technological people in the technical scope that the present invention disclosed; Can understand conversion or the replacement expected; All should be encompassed in of the present invention comprising within the scope, therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. accurate boring processing frock that realizes the coaxial precision holes of many meter levels span micron order; It is characterized in that comprising: assembly (2), four sides rib body speculum and adjustment assembly (3) and optical-autocollimator and adjustment assembly (4) are demarcated in auxiliary truss structure workbench (1), workbench center, and the bottom of auxiliary truss structure workbench (1) is fixed on the workbench (A) of former common boring machine; Optical-autocollimator and adjustment assembly (4) are fixed on the side of pedestal (B) of former common boring machine; The workbench center is demarcated assembly (2) and four sides rib body speculum and adjustment assembly (3) and is fixed on the auxiliary truss structure workbench (1);
It is to regulate tube (8), connecting plate (9) and standard annulus (10) by first to connect to form that assembly (2) is demarcated at said workbench center; First regulates a plurality of screw holes that tube (8) upper surface is provided with symmetry on the circumference, and connecting plate (9) end face is provided with through hole, adopts a plurality of screws to be fastenedly connected between the first adjusting tube (8) and the connecting plate (9);
Said four sides rib body speculum and adjustment assembly (3) are to regulate tube (13) and form through four sides rib body speculum (11), the first three-dimensional adjustment turntable (12) and second; Four sides rib body speculum (11) is fixed on the upper surface of the first three-dimensional adjustment turntable (12); Second regulates a plurality of screw holes that tube (13) upper surface is provided with symmetry on the circumference, and the first three-dimensional adjustment turntable (12) and second is regulated and adopted many screws and pressing plate to be fastenedly connected between the tube (13);
Said optical-autocollimator and adjustment assembly (4) are made up of the second three-dimensional adjustment turntable (12), lifting platform (14) and optical-autocollimator (15); Optical-autocollimator (15) directly is placed on the upper surface of the second three-dimensional adjustment turntable (12); Lifting platform (14) upper surface is provided with a plurality of screw holes of symmetry on the circumference, adopts a plurality of screws and pressing plate to be fastenedly connected between the second three-dimensional adjustment turntable (12) and the lifting platform (14).
2. the accurate boring processing frock of the coaxial precision holes of many meter levels of realization span micron order according to claim 1; It is characterized in that said auxiliary truss structure workbench (1) is to have two quadras (5) and support member (6) and nine connecting plates (7) to be welded.
3. the accurate boring processing frock of the coaxial precision holes of many meter levels of realization span micron order according to claim 2; It is characterized in that; Said auxiliary truss structure workbench (1); The expansion range of work in the restriction of former common boring machine self load capacity, quadra (5) adopts the welding of seamless cold rectangular steel tube, and support member (6) adopts the seamless cold rectangular steel tube.
4. the accurate boring processing frock of the coaxial precision holes of many meter levels of realization span micron order according to claim 1; It is characterized in that; After the workbench (A) that this frock is fixed on former common boring machine was gone up, auxiliary truss structure workbench (1) was of a size of 2700mm * 2700mm, auxiliary truss structure workbench (1) end face plane error 0.003mm.
5. the accurate boring processing frock of the coaxial precision holes of many meter levels of realization span micron order according to claim 1; It is characterized in that; The performing step that assembly (2) is demarcated at said workbench center comprises: connecting plate (9) is screwed first regulates on the tube (8); The flatness of connecting plate (9) end face is fixed on the standard annulus on the connecting plate (9) with pressing plate and screw less than 0.002mm then, on the main shaft of former common boring machine, adsorbs amesdial simultaneously; Auxiliary truss structure workbench (1) centering of rotation makes standard circle ring center and auxiliary truss structure workbench (1) pivot error in 0.002mm; Rotate the main shaft of former common boring machine more simultaneously and read spindle revolutions, move former common boring machine X to guide rail, former common boring spindle center is overlapped with auxiliary truss structure workbench (1) pivot according to the amesdial reading; Confirm that pivot x is to coordinate; The realization theory axis determination is passed through X to guide rail motion compensation errors of centration in the processing, make the theoretical coaxial axis of required processing parts through auxiliary truss structure workbench (1) centre of gyration.
6. the accurate boring processing frock of the coaxial precision holes of many meter levels of realization span micron order according to claim 1; It is characterized in that select 0.2 for use the four sides rib body speculum of " optical-autocollimator (15) select accurate manual four sides angle precision of throwing system accurately demarcate " less than 1; Four sides rib body speculum (11) wherein and the revolution synchronously of the fixing back of auxiliary truss structure workbench (1); Realize the light catoptric imaging in auxiliary truss structure workbench (1) turning course; 0.2 " optical-autocollimator is realized rib body speculum (11) angle of revolution, four sides reading, thereby realizes workbench (A) angle of revolution of former common boring machine " is promoted to 1.1 " by error 15.
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CN105157619A (en) * | 2015-07-10 | 2015-12-16 | 中国科学院西安光学精密机械研究所 | System and method for detecting parallelism error between lathe rotating shaft and lathe tool rest guide rail |
CN107991994A (en) * | 2017-11-24 | 2018-05-04 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of processing method for clamping of not feeling relieved |
CN112212825B (en) * | 2020-09-27 | 2021-10-15 | 中国科学院西安光学精密机械研究所 | Coaxial auto-collimation adjusting device and method for pitch axis of theodolite for astronomical observation |
CN112427969B (en) * | 2020-10-28 | 2022-06-24 | 九江精密测试技术研究所 | Method for processing axial positioning surface of turntable frame |
CN117564782A (en) * | 2024-01-16 | 2024-02-20 | 四川普什宁江机床有限公司 | Processing method of high-precision coaxial hole system |
Citations (3)
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SU552177A1 (en) * | 1975-10-10 | 1977-03-30 | Экспериментальный Научно-Исследовательский Институт Металлорежущих Станков (Энимс), Вильнюсский Филиал | Device for measuring the error angle of rotation of the dividing machine table |
DE4012468A1 (en) * | 1990-04-19 | 1991-10-24 | Kessler Friedrich & Co | Clamping device for delicate workpieces - includes table on which are arranged rails in form of star around central point |
CN2865936Y (en) * | 2006-01-09 | 2007-02-07 | 林宇 | Main shaft moving digital control lathe |
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KR20080014250A (en) * | 2006-08-10 | 2008-02-14 | 진 호 정 | The de-center adjustment device and method for lens assembly |
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Publication number | Priority date | Publication date | Assignee | Title |
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SU552177A1 (en) * | 1975-10-10 | 1977-03-30 | Экспериментальный Научно-Исследовательский Институт Металлорежущих Станков (Энимс), Вильнюсский Филиал | Device for measuring the error angle of rotation of the dividing machine table |
DE4012468A1 (en) * | 1990-04-19 | 1991-10-24 | Kessler Friedrich & Co | Clamping device for delicate workpieces - includes table on which are arranged rails in form of star around central point |
CN2865936Y (en) * | 2006-01-09 | 2007-02-07 | 林宇 | Main shaft moving digital control lathe |
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