CN103447588A - Method for finding center of oblique oil hole of engine cylinder - Google Patents
Method for finding center of oblique oil hole of engine cylinder Download PDFInfo
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- CN103447588A CN103447588A CN2012101770599A CN201210177059A CN103447588A CN 103447588 A CN103447588 A CN 103447588A CN 2012101770599 A CN2012101770599 A CN 2012101770599A CN 201210177059 A CN201210177059 A CN 201210177059A CN 103447588 A CN103447588 A CN 103447588A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005314 correlation function Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
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Abstract
The invention discloses a method for finding a center of an oblique oil hole of an engine cylinder. The method comprises the steps of: adjusting a crossed point of a drill bit center of a horizontal processing machine tool and a rotating central line of a rotating table as a rotating center; installing the engine cylinder uprightly on the rotating table through a clamp and rotating the rotating table for an angle as same as an oblique angle of the oblique oil hole; drawing a position relationship between the oblique oil hole of the engine and the rotating table after the rotation by using computer software, measuring a distance X1 between the central line of the oblique oil hole and the central line of the drill bit of the machine tool in a horizontal plane by using the software in a computer, and converting the distance X1 to a practical distance X; calculating a distance Y between the center of the oblique oil hole of the engine and the central line of the drill bit of the machine tool in an vertical plane based on the distance between the bottom end of the cylinder and the rotating center of the rotating table in the vertical plane and the drawing of the engine cylinder; enabling the drill bit of the machine tool to move for the distance X in the horizontal plane and move for the distance Y in the vertical plane so as to find the center of the oblique oil hole. The method for finding the center of the oblique oil hole of the engine cylinder can improve production efficiency efficiently and reduce error.
Description
Technical field
The present invention relates to the engine production technical field, relate in particular to the method at a kind of centering engine cylinder-body inclined oil hole of air center.
Background technology
The engine inclined oil hole of air is the lubrication delivery passage of lubricated bent axle, and this hole belongs to typical deep hole, its draw ratio minimum all is greater than 15, therefore this oilhole needs the degree of depth of drilling large adding man-hour, and having relatively high expectations to machining accuracy in the middle of the process of processing, in actual process, the centering at inclined oil hole of air center is a difficult point, if the center of inclined oil hole of air does not have centering, the precision in the hole processed certainly will be by the out-of-size allowed band, this can produce the oil duct off normal, alter the phenomenon in hole, directly have influence on the lubricated of bent axle and camshaft, even cause scrapping of workpiece.
At present, the conventional method of inclined oil hole of air center centering is the corresponding oil hole template in inclined oil hole of air position of a set of and the processed engine cylinder-body of design in advance, oil-hole location on oil hole template is the position drawn after calculating according to the size of cylinder body drawing, oil hole template is set on engine cylinder-body to be processed, and at oil-hole location, fairlead is installed, by fixture stationary engine cylinder body, oil hole template and fairlead, drill bit gets out inclined oil hole of air under the guiding of fairlead.
Yet, use the method to carry out inclined oil hole of air center centering and must design a set of oil hole template adapted to engine cylinder-body, and need the complicated fixture of design to carry out the fixing of oil hole template and fairlead, fixation procedure is very loaded down with trivial details, need to take a long time, this has just reduced production efficiency, thereby has intangibly increased enterprise's production cost.And also can have error in the production process of oil hole template and fairlead, oil hole template is sleeved on cylinder body also can exist deviation, thereby finally may cause the deviation of inclined oil hole of air boring.
Therefore, how to find a kind of accurate positioning, and the aligning method of easy inclined oil hole of air swift to operate, to carry the high efficiency of enterprise, be the technical problem that current those skilled in the art need solution badly.
Summary of the invention
The method that the purpose of this invention is to provide a kind of centering engine cylinder-body inclined oil hole of air center, in order to save manufacturing cost, and can find out the center of engine inclined oil hole of air accurately.
For solving above-mentioned prior art problem, the invention provides the method at a kind of centering engine cylinder-body inclined oil hole of air center, comprise step:
1) center line of the drill bit of adjustment type horizontal processing machine tool overlaps with the centre of gyration of described rotary table with the intersection point of the center line of the centre of gyration of rotary table;
2) engine cylinder-body vertically is installed on the rotary table of the type horizontal processing machine tool that fixture is installed, its main shaft is overlapped with the center line of the centre of gyration of rotary table, rotary table is rotated to the angle identical with engine inclined oil hole of air inclination angle;
3) draw out engine inclined oil hole of air after rotation and the position relationship of panoramic table according to the engine cylinder-body design size and by computer software, by the distance X 1 of center line in horizontal plane of center line and the machine tool drill of software measurement engine inclined oil hole of air, and be converted into actual range X by drawing engineer's scale;
4) according to the distance of engine inclined oil hole of air and engine cylinder-body bottom and engine cylinder-body bottom and the rotary table centre of gyration in vertical plane apart from calculating engine inclined oil hole of air center line and the distance Y of machine tool drill center line in vertical plane;
5) machine tool drill being moved in the horizontal direction to the X vertical direction moves Y and is the inclined oil hole of air center.
Preferably, described step 4) completes by CAD software.
Preferably, the drafting scale of described mapping software is 1.
As can be seen from the above technical solutions, the method at centering engine cylinder-body inclined oil hole of air provided by the present invention center, at first the intersection point of center line of adjusting the centre of gyration of the center line of drill bit of type horizontal processing machine tool and rotary table is the centre of gyration, and engine cylinder-body vertically is arranged on the rotary table of type horizontal processing machine tool, and rotary table is rotated to the angle identical with engine inclined oil hole of air angle of inclination, draw out engine cylinder-body inclined oil hole of air after rotation and the position relationship of panoramic table according to the engine cylinder-body design drawing by computer software, can directly measure by software the distance X 1 of center line in horizontal plane of center line and the machine tool drill of engine inclined oil hole of air, be converted into actual range X by drawing engineer's scale, this distance i.e. the distance between machine tool drill and engine inclined oil hole of air in horizontal plane, can calculate engine inclined oil hole of air center line and the distance Y of machine tool drill center line in vertical plane according to engine cylinder-body design drawing and engine cylinder-body bottom and the distance of the rotary table centre of gyration in vertical plane, this distance is the distance between machine tool drill and engine inclined oil hole of air in vertical plane, therefore, drill bit displacement X displacement Y in vertical plane in horizontal plane can accurately be found to the center of engine inclined oil hole of air.Because the method has been saved oil hole template and fairlead, thereby saved the fixture of the complexity of oil hole template and fairlead, only adopt simple fixture that engine cylinder-body is fixed and got final product, effectively saved the set-up time of workpiece on lathe, and because the software measurement distance is swift to operate easy, thereby effectively improved production efficiency.Calculate with theoretical the mode combined because the present invention adopts software to draw, thereby its precision is secure, so can accurately find the inclined oil hole of air center, reduces error simultaneously.
The accompanying drawing explanation
The scheme of installation of engine cylinder-body on the type horizontal processing machine tool panoramic table that Fig. 1 provides for the embodiment of the present invention;
The engine cylinder-body that Fig. 2 provides for the embodiment of the present invention is arranged on the cross sectional representation on the type horizontal processing machine tool panoramic table;
The rotation rear engine inclined oil hole of air that Fig. 3 provides for the embodiment of the present invention and the location diagram of panoramic table.
The specific embodiment
Core of the present invention is to provide the method at a kind of centering engine cylinder-body inclined oil hole of air center, and the method that the method combines with theoretical calculating by the Software on Drawing figure is found the center of engine inclined oil hole of air, can effectively reduce error, finds fast the inclined oil hole of air center.
In order to make those skilled in the art person understand better the solution of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please also refer to Fig. 1 to Fig. 3, the scheme of installation of engine cylinder-body on the type horizontal processing machine tool panoramic table that Fig. 1 provides for the embodiment of the present invention, the engine cylinder-body that Fig. 2 provides for the embodiment of the present invention is arranged on the cross sectional representation on the type horizontal processing machine tool panoramic table, the rotation rear engine inclined oil hole of air that Fig. 3 provides for the embodiment of the present invention and the location diagram of panoramic table.
The method at the centering inclined oil hole of air center in the present invention comprises step:
1) center line of the drill bit of adjustment type horizontal processing machine tool overlaps with the centre of gyration of described rotary table 3 with the intersection point of the center line of the centre of gyration 1 of rotary table 3, in vertical plane, center and the centre of gyration of drill bit are positioned at sustained height, and the extended line of the center line of drill bit and the center line of the centre of gyration intersect, be that so-called auger axis is aimed at the centre of gyration, type horizontal processing machine tool can be μ 2000/800H type horizontal processing machine tool;
2) engine cylinder-body 1 vertically is installed on the rotary table 3 of the type horizontal processing machine tool that fixture 2 is installed, its main shaft is overlapped with the center line of the centre of gyration of rotary table 3, rotary table 3 is rotated to the angle identical with engine inclined oil hole of air 5 inclinations angle, the fixture that fixture 2 in this step can carry for rotary table or be installed to the fixture on rotary table, this fixture 2 can keep engine cylinder-body 1 to be vertically placed on rotary table 3, and fixed.
As the fixture 2 in Fig. 1 is to be installed to the fixture on rotary table 3, the surrounding of this fixture 2 is fixedly connected on rotary table 3 by pressing plate and bolt, preferably, fixture 2 is proofreaied and correct before clamping carrying out engine cylinder-body 1, with the center that guarantees fixture 2, with the centre of gyration of rotary table 3, overlap, for the center that guarantees fixture 2 overlaps with the centre of gyration of rotary table 3, fixture center in the present embodiment is provided with the hole corresponding with the centre of gyration of rotary table 4, make the centre of gyration of this hole and rotary table 3 align and insert bearing pin to position on clamp base and rotary table 3, thereby guarantee the center superposition of the centre of gyration and fixture 2, during installation, make the main shaft of engine cylinder-body 1 overlap with the centre of gyration line of rotary table 3, the line of symmetry of the vertical direction of the main shaft mean engine cylinder body 1 of engine cylinder-body 1, the angle of inclination of engine inclined oil hole of air 5 refers to the angle of the extended line of the center line of inclined oil hole of air and machine tool drill center line.As the inclination angle of engine inclined oil hole of air 5 is 26 °, rotary table 3 can be rotated to 26 °.Rotate after the angle identical with engine inclined oil hole of air 5 center line and the bit central line parallel that will make engine inclined oil hole of air 5.
3) drawn out the position relationship of engine inclined oil hole of air 5 after rotation and rotary table 3 by computer software according to the size of the design drawing of engine cylinder-body 1, as shown in Figure 3, and by the distance X 1 of center line in horizontal plane of center line and the machine tool drill of software measurement engine inclined oil hole of air 5, and be converted into actual range X by drawing engineer's scale, by the design data of engine cylinder-body 1 with and with the position relationship of rotary table 3, be input in the middle of software, be depicted as location diagram as shown in Figure 3, directly measure the distance X 1 between the center line of the center line of engine inclined oil hole of air 5 and machine tool drill by computer software, engineer's scale size by graphing, can be converted into actual range X, this distance is in horizontal plane, distance between the center line of drill bit and engine inclined oil hole of air 5 centers, in Fig. 3, can find out, drill bit should be moved to the left distance X,
4) can calculate engine inclined oil hole of air 5 center lines and the distance Y of machine tool drill center line in vertical plane according to the distance of engine inclined oil hole of air in the design drawing of engine cylinder-body 1 and engine cylinder-body 1 bottom and the distance of the centre of gyration in vertical plane of engine cylinder-body 1 bottom and rotary table 3, because the design size of engine cylinder-body 1 is known, thereby engine inclined oil hole of air 5 is known with the distance of engine cylinder-body 1 bottom, if the fixture adopted 2 has base, so by the thickness measure of fixture 2 bases out, seeking the limit device as employing is measured, can draw engine inclined oil hole of air 5 in vertical plane with the distance Y of machine tool drill.
5) make machine tool drill move in the horizontal direction distance X and can find the center of inclined oil hole of air at vertical direction displacement Y.
In above embodiment, can draw, the method of centering engine inclined oil hole of air 5 provided by the present invention is owing to having saved oil hole template and fairlead, thereby also just saved the fixture of the complexity of oil hole template and fairlead, only adopt simple fixture that engine cylinder-body is fixed and got final product, and because the software measurement distance is swift to operate easy, thereby effectively improved production efficiency.Calculate with theoretical the mode combined because the present invention adopts software to draw, thereby its precision is secure simultaneously, thereby can accurately finds the inclined oil hole of air center, reduce error.
In the process of engine inclined oil hole of air 5, bore a bullport at the center position of engine inclined oil hole of air 5, and then adopt by long drill bit the processing method processing inclined oil hole of air of attacking rewind down.
Above-mentioned steps 4) mapping software in is the CAD mapping software, or other mapping softwares with correlation function all can.
In order to reduce amount of calculation, the drafting scale in the present embodiment preferably adopts 1, and in step 3), measured X1 is actual range like this, and in the middle of the process moved at drill bit, direct mobile X1 gets final product in the horizontal direction.
Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (3)
1. the method at a centering engine cylinder-body inclined oil hole of air center, is characterized in that, comprises step:
1) center line of the drill bit of adjustment type horizontal processing machine tool overlaps with the centre of gyration of described rotary table (3) with the intersection point of the center line of the centre of gyration of rotary table (3);
2) engine cylinder-body (1) vertically is installed on the fixture (2) of rotary table (3), its main shaft is overlapped with the center line of the centre of gyration of rotary table (3), rotary table (3) is rotated to the angle identical with engine inclined oil hole of air (5) inclination angle;
3) according to the design size of engine cylinder-body (1) and drawn out the position relationship of engine inclined oil hole of air (5) after rotation and panoramic table by computer software, by the distance X 1 of center line in horizontal plane of center line and the machine tool drill of software measurement engine inclined oil hole of air (5), and be converted into actual range X by drawing engineer's scale;
4) according to the distance of engine inclined oil hole of air and engine cylinder-body (1) bottom and engine cylinder-body (1) bottom and rotary table (3) centre of gyration in vertical plane apart from center line and the distance Y of machine tool drill center line in vertical plane that can calculate engine inclined oil hole of air (5);
5) machine tool drill being moved in the horizontal direction to the X vertical direction moves Y and is the inclined oil hole of air center.
2. the method at centering engine cylinder-body inclined oil hole of air according to claim 1 center, is characterized in that, described step 4) completes by CAD software.
3. the method at centering engine cylinder-body inclined oil hole of air according to claim 2 center, is characterized in that, the drafting scale of described mapping software is 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177059.9A CN103447588B (en) | 2012-05-31 | 2012-05-31 | A kind of method of centering engine cylinder-body center of oblique oil hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210177059.9A CN103447588B (en) | 2012-05-31 | 2012-05-31 | A kind of method of centering engine cylinder-body center of oblique oil hole |
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| CN103447588A true CN103447588A (en) | 2013-12-18 |
| CN103447588B CN103447588B (en) | 2016-10-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647143A (en) * | 2014-12-24 | 2015-05-27 | 湘潭电机股份有限公司 | Method for automatically calculating coordinates of workpiece symcenter of numerically-controlled machine tool |
| CN105108507A (en) * | 2015-08-31 | 2015-12-02 | 中国航空工业集团公司北京航空精密机械研究所 | Clamping alignment method used for machining thin-walled frame parts through three-axis numerical control machine tool |
| CN114406698A (en) * | 2022-03-17 | 2022-04-29 | 重庆水轮机厂有限责任公司 | Method for machining inclined oil hole of water turbine sliding rotor |
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| CN1887487A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Process of machining bleeding hole in rotation wheel of mixed flow generator set |
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2012
- 2012-05-31 CN CN201210177059.9A patent/CN103447588B/en active Active
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| CN1887487A (en) * | 2006-07-25 | 2007-01-03 | 四川东风电机厂有限公司 | Process of machining bleeding hole in rotation wheel of mixed flow generator set |
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Non-Patent Citations (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647143A (en) * | 2014-12-24 | 2015-05-27 | 湘潭电机股份有限公司 | Method for automatically calculating coordinates of workpiece symcenter of numerically-controlled machine tool |
| CN105108507A (en) * | 2015-08-31 | 2015-12-02 | 中国航空工业集团公司北京航空精密机械研究所 | Clamping alignment method used for machining thin-walled frame parts through three-axis numerical control machine tool |
| CN114406698A (en) * | 2022-03-17 | 2022-04-29 | 重庆水轮机厂有限责任公司 | Method for machining inclined oil hole of water turbine sliding rotor |
| CN114406698B (en) * | 2022-03-17 | 2023-08-25 | 重庆水轮机厂有限责任公司 | Oblique oil hole processing method for hydraulic turbine sliding rotor |
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Effective date of registration: 20231121 Address after: 243071 No. 359 Huxinan Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Hanma Engine Co.,Ltd. Address before: 243061 Huxi South Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee before: ANHUI HUALING AUTOMOBILE Co.,Ltd. |
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